Seems like you could make more than .60 a day doing Mechanical Turk jobs. It'd be a little less mind numbing than watching commercials every day.
I agree you can make more. But, one thing to consider is, you have to have a bank account to deposit turk money into or buy things from Amazon. Neither of those has the immediacy of Bitcoin. Also, a lot of homeless have issues getting a bank account. We have millions of "unbanked" people in the US alone.
Since it's relevant: scam requesters are abundant on Mechanical Turk, and they can kill your earning potential if you don't avoid them. I wrote a thing on how to do that: http://mkronline.com/2013/09/17/how-to-make-money-with-mecha...