There is literally no site in the world that is safe from crazy people. By coincidence I just found a guy who leaves a funny Ebay feedback all over the place. Not sure what rides him, but definitely funny. Here a few:

Are you seriously this excited about an Ipod? You need a woman!

Please write more nice stuff about me next time. It makes me feel good.

You should tell Ebay I’m great so they’ll stop threatening to kill my account.

I bought this video only to hear that hot Beach Boys song on the end.
More from this guy here.