I understand that the site staff can't catch everything that goes on [though everyone does an absolutely wonderful job of resolving things, so props to you guys!], but here's one issue that bugs me:
This is a site specifically for selling. I really do wish there was a rule that only people with legitimate questions can comment on the auctions.
Comments like "Oh so cute~!" and "I wish I had money!" are completely unnecessary on a site SPECIFICALLY FOR SELLING. Sellers sometimes have website and gallery links next to their names; users should post general "praise" comment on the item if it's posted in the seller's art gallery, NOT the auction itself.
It just seems a lot like spam to me.
But that's just my humble opinion.
tl;dr version of this post: I would really like general comments to not be allowed to be posted on auctions; only questions related to the item being sold.