The only downside to DuckDuckGo is the results are terrible -- I don't care the claims are, this search provider doesn't in the same league of intelligent search results as Google or Bing.
One of the main reasons that cannabis has failed to be fully legalized in California is because greedy dealers want the industry to stay small and contained. I remember seeing tons of "Vote No" signs in Mendocino and Sonoma counties regarding legalization (which are huge cultivation areas,) and have known many growers and distributors who were vehemently against legalizing it.
It is extremely easy to cheat on a lot of online courses. One major flaw is many instructors use a test-bank for all of their exam questions, which makes verbatim Googling for the answer a piece of cake.