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.
That's not our problem. People should try to acquire some actually useful skills rather that mindlessly posting garbage around here. For example, it is not that hard to pick up some programming language for some entry level position.
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.
Again, not our problem. People that are genuinely contributing will continue to get paid. People that are posting garbage just to get paid will eventually keep getting banned / blacklisted / etc. We need to prevent them from diluting this forum; the average posting quality is already worrisome.
They don't take Signature Campaign as an important job which can be displayed from their post quality.
If they were actually doing their "job" properly, then I'd say that this problem would be much smaller. However, these people usually don't care about Bitcoin nor the forum and just want the money.