Who here is under the assumption that I'm a charity?

The reason that I ask is because in the past, I've done requests. A ridiculous amount of them. So many, in fact, that I feel like I've given my name a terrible reputation for being too generous. I don't mean to sound pretentious, but recently I've made it very clear that I no longer do requests, yet I still succumb to them because I feel it's the "right" thing to do, as in I'm doing someone a kindness. Even so, when I grew a pair and asserted myself , I was stiffed. I've been stood up multiple times and I've allowed myself to forgive and forget. Now, I've made myself brutally clear that I am NOT a charity and still I'm left for broke. I know that I'm approachable when it comes to this. I've been willing to negotiate in the past. I shouldn't have to be stressing out over this, but its getting to the point to where its getting stupid. Really stupid. Stupid to the point where art given to untrusted commissioners HEAVILY outweigh those given to dedicated commissioners.

So the question is, and I need to know, who here is still under the impression that I work for free?