And rightly so. It is a trap for the unwary. There are a few people like this. Those of us who use our user names on ebay do so as an invitation to check up on us. You should do the checking up. :) I don't buy from people who register and don't post because I don't know anything about them. pitangadiego, figsnstuff, treesofjoy, hermansur, FMD, mnedelcu, Espos3girls, ejp3, na_kesh, kk, fruitnut and several others have long and proven reputations. Others are proving themselves and I wouldn't hesitate to buy from them.
It's up to you to investigate your sellers and it sounds like you're doing a good job.