i have been close to sales people and cold calling/messaging is one technique, a really hard one to master, and its what leads most of the time to spam, i think a good solution would be to teach them how to do it right.. at the end sales have to be done but brute force shouldn't be a legitimate technique to it.
So maybe tell them that if you send personal messages and segment the market that would increase the response rate and reduce the spam?
great work, i feel like the rest the next link is to small, and even if you try to navegate with arrows <-, -> and works some other mechanic like (enter/click/tap) to keep going and then (esc/del/back) to avoid the intro, but its a great aid as it is right now a friend of me built something like this (not that good), from zero to his app but now everyone can have this, going to recommend it.
+1 i only update my resume when im planning to change position, since this tool is not to actively look for jobs i would care less to keep a resume updated