I know I mentioned it before...but iTrader would be a helpful addition to our site. It allows you to leave buyer/seller feedback in a format similar to ebay, and you have to link to a thread in order to leave feedback...which helps alleviate any positive or negative spamming of people.
I know some feel we're not big enough of a group for that, and it seems unnecessary, and some people even may think that it'd create friction in the club...but the bad eggs will be weeded out quickly that way. I had someone get rather nasty with me several months ago after I posted a WTB thread, because I asked if they were going to the meeting so I could arrange pickup. Apparently some people feel that they "don't have time for that stuff", and it was supposedly audacious of me to even make that request, and I needed to drive across town to save 5 bucks on a 20 dollar used item.
On the other hand...I had someone recently OFFER to meet me in a more convenient location than his place, and he drove 15 minutes north of his home to shorten my drive. I didn't even ask...it worked out well and I ended up being able to spend the evening with my lady rather than driving well out of the way to pick up a small item. Without any feedback section, the best I could do was throw him an extra $5 for his thoughtfulness.
People should know who the good and bad eggs are...I've had people offer to buy coral then come to my house and try to talk me down on price. I'd rather not go through that again, and thus have resorted to trading, or just been bringing frags to Elite when I have extra coral on hand.