enforcement will be toothless
It would probably drive members away ... members like, oh, maybe me ...

would be nice to see more 'gracious donors' ... just noticed that you're not one!
Guilty as charged, primarily due to all-but-empty pockets. I pledge to take the next $20 that anybody donates to the sites I run, and pass it straight to CG. Or if I ever pick up a commission off here, I'll split it 50-50. (Somebody remind me of that, if the day ever comes!)

But you know what ... it'd be awesome if every commission solicited thru this site got a voluntary 10% tithe from the bid winner. Maybe in addition to 'generous donor' CG might create a category called, um ... well I dunno what it would be called. Taxpayer?