the biggest problem on eBay is illiteracy.

if you cannot clearly communicate via text (and I'm by no means an exceptionally straightforward writer), please do not sell on the internet.

I just got burned $200 on a guitar with a broken neck. Now the seller claims I'm "harassing" her when I email about a refund, and her negative feedback to me (the first ever, on ebay since 1999) says "GOD IS ON MY SIDE."

It's hard to spot a psycho on eBay. Writing in ALLCAPS!!1 is a good clue.