Hey, I know you!

You're on my list of good sellers.

my eBay name is different but you should recognize my real name.
Actually feedback is one of worst ways to check if a seller is good or not. Once you've left it you can't change it, so if you find out later you got scrappers it's too bad. I do look at feedback and see what I can find out but I don't rely on it 100%. I look at the pins up for sale, see if they are rack pins, lots of Hidden Mickey's, new Hidden Mickey's, regularly scrapped pins (once you get some experience under your belt you will start knowing which pins are scrapped regularly) or if they have thousands of pins up for auction available in huge lots. Those are all red flags for me and I tend to shy away from them. But that's just me, I know others have other ways of checking.
I have read negative things about BBBCollectibles but I've never ordered anything from them before so I can't say at all. Read the thread below, I know, it's huge and scary but it's very educational and has a good listing of eBayers to use and eBayers to avoid in regards to pins.
chipanddaleandpooh is another good one.