Now, while I don't draw that much fan art for Pac Man and the Ghostly Adventures, I do kind of hover in and out of the fanbase and watch episodes whenever they're out. Something's bugging me, and that's the presence of those making fun of self-insert fan characters.
The majority of the creators of these characters are rather young people (i.e. ages 11-16), and I don't see it as a problem that young people are making characters to "play in" the series with. I did the same thing with Darkwing Duck at age 12, creating about 4 or 5 female characters of a variety of ages and jobs; I'm really lucky nobody harassed me over them, because it was really therapeutic. What I'm trying to say is, I don't want to see any kids getting flack for making a character to hang out with their favourite characters.