You are making the mistake of thinking that McDonalds minimum wage applies in every country in the world... but someone making 380 ish dollars with 3 accounts posting on the internet is having a great deal in certain countries. Even in some European countries like in some parts of Czech republic or nearby, you could make a living in some non expensive area with that money.

Sig campaigns are saving a lot of people's lives. Let's not ruin something that has an actual direct impact on people's lives thanks to bitcoin. Some people hate commuting and having a boss telling you what to do, they may prefer to make less money and get the freedom of working at your own schedule in return, plus like I said before, in some countries you make more than minimum wage with sig campaigns (is not my case, for me is just a small bonus, im still doomed to work unfortunately).