Just something you might want to fiddle with when you have the time. If I remember correctly, on Paleo AO (as Zui Quan says), you could donate to the site. Now, I don't know if I personally will be able to afford donating any time soon, but maybe you could set up a donation dealy-o or something for the uh, members with more 'padded' pockets. Maybe you could even have that little title underneath the member's name... what was it? "Anime Online Contributor" or something like that.
Meh, it's just my idea.