I can't really answer the question with any insider knowledge, but from experience working with the Map Maker product and Google reviewers (those are the ones with G), they use a contracting workforce for local that has little training and high turnover. The Google Reviewers on the Map Maker team usually have better training and retention, and have higher quality standards that they adhere to, but that may be my bias working with them (they are usually quicker to fix their mistakes, and they also QC the LE reviews, frequently (100%) overturning their reviews and approving your edit on MM if the LE denies your edit. It's very frustrating and almost bipolar.
It's all fairly easy to spam Google Maps from other avenues. I've seen bulk uploads of 100's of spam listings, the Google My Business product is also easily gamed, and the LEs don't appear to closely scrutinize locations in order to ensure that the business is where it's claimed to be, even though they have access to more detailed street view imagery and presumably can just Google it. Google in general, and LEs in particular, seem to have a policy of preserving all data, no matter how bad/spammy, and approving new POIs, even if the POI is of a questionable nature and isn't supported by the facts, which, again, points to a deficit in their training in being able to identify spam features for Maps. Once you know what spam is, it's fairly easy to identify, and the actual QC checks, primarily using government licensing databases and other resources, takes about 30 seconds or less to verify listings. The hard part, at least on my end, is removing it. Google loves to hang on to spam.
I wrote that! Thanks for posting that. Here's a good article from an ex-Maps spammer, detailing how he used exploits in the Maps UI to hijack listings: http://valleywag.gawker.com/how-a-hacker-intercepted-fbi-and... Although that particular loophole is closed, there are still many ways to get spam listings on Maps.
It isn't locksmiths, as a whole, who are dishonest, it's that there's an international organized crime ring that runs a majority of the locksmith ops in the US, Canada, UK, and other countries. They operate call centers here and abroad that route calls to contractors in the field, who are usually working (at least in the US) here illegally on tourist visas, and they charge several hundred dollars above market price to perform unlocks, and much more to sell and install counterfeit lock hardware, none of which their workforce is remotely qualified to actually carry out. Unless you know the locksmith, or know their shop, or can find a locksmith affiliated with ALOA, or use your insurance company's (example: AAA) list of approved locksmiths, it's wise to steer clear of any locksmith on Google affiliated products. Otherwise, you'll become a victim of their bait-and-switch schemes (which often run as "$15 unlock in 15 min." on Google AdWords). Same could be said for garage door suppliers, carpet cleaners, and handymen--they're all run by the same crime group, more or less, and have been honing their craft since the 1980's, when they got their start with the printed white and yellow pages before moving on to Google. I would start with Meni Agababayev of Run Local Locksmith, and David Peers of Dependable Locks, to find out more information.
(Incidentally, you made a wise choice.)
Similarly, local florists are great, but many of the florist ops on Google Maps are just resellers running out of a call center who tack on an extra fee for ordering the flowers for you.
There seems to be a huge difference in the quality of teams that use Atlas. For example, I've submitted reports on thousands (ex-hobby of mine) of spam locksmith listings over the years via Maps RAP and MM Report this. The MM team would readily remove spam, whereas the Local team wouldn't, even though the POIs were clearly spammy (special characters in the name). I've also coordinated with other maps users, and it seems the consensus is is that Local team will protect claimed listings at all costs, even to the point of hiding addresses for spam SABs (service area businesses) when they should just be removed altogether. If a spam POI is in the middle of a lake, or has weird characters in the name to evade the spam filters, wouldn't that raise some alarm bells somewhere? Do they have any standards or guidelines for evaluating the spammiess of a POI? Local seems to be engaged in an aggressive turf war with other teams, like Map Maker to protect their listings. Many edits that I've made to benign POIs within MM have been denied by LEs, only to be later accepted and corrected by GRs. Can you comment on the differences in quality among the respective teams, and their methods for evaluating edits? And why are they so determined to keep SABs out of the MM listings, especially considering the many of the SABs are spam, and use virtual offices, PO boxes, and unrelated business addresses (McDonalds, etc.), and, at least in the US, have to be licensed for business (and the business license address itself is a matter of public record? The reason given was that they wanted to protect the privacy of the business owner, but businesses have virtually no privacy (and no one used MM to find businesses except to edit them). SABs used to be visible in MM, now they're not. The "new" Maps RAP is terrible at reporting issues beyond just the basics. Reporting spam with the Maps RAP is a chore and almost better suited to MM.
Regarding florists, they're bad, completely agree. I weeded out a few mega-spam networks a few years ago before I gave up and focused on locksmith spammers. Garage door suppliers, handymen, carpet cleaners, movers, escorts, and lawyers! Lawyers are pretty bad, especially the ambulance chasers/accident attorneys.
Can you use the Atlas tool to correct business and other E/POIs (establishment/points of interest), or is limited to roads and other base map data? How do they evaluate spam POIs (say, locksmiths, who are prolific on Maps) in comparison to other Maps RAP (Report a problems)? Do all the teams (Places Listing Editors, Map Maker Google Reviewers, Maps Editors, etc.) use the same Atlas tool, or do they all have different tools? I use MM (Map Maker) quite a bit, and I'm curious how Google's tools work in comparison. Thanks.
It's all fairly easy to spam Google Maps from other avenues. I've seen bulk uploads of 100's of spam listings, the Google My Business product is also easily gamed, and the LEs don't appear to closely scrutinize locations in order to ensure that the business is where it's claimed to be, even though they have access to more detailed street view imagery and presumably can just Google it. Google in general, and LEs in particular, seem to have a policy of preserving all data, no matter how bad/spammy, and approving new POIs, even if the POI is of a questionable nature and isn't supported by the facts, which, again, points to a deficit in their training in being able to identify spam features for Maps. Once you know what spam is, it's fairly easy to identify, and the actual QC checks, primarily using government licensing databases and other resources, takes about 30 seconds or less to verify listings. The hard part, at least on my end, is removing it. Google loves to hang on to spam.