No kidding, eBay allows JavaScript in description texts. What a stupid idea - JavaScript can do all sorts of things, including accessing other parts of the page via DOM and changing content there.

Apart from the fact that JavaScript can do many other nasty things that become particularly interesting in the context of an auction system.

And what does eBay say about it? That they would allow JavaScript so that sellers can make their offers interesting. Question: why on earth would you need JavaScript for that? You need HTML. And CSS. And maybe more intelligent formatting of the eBay pages themselves. But JavaScript? That's completely crazy ...

It seems only idiots work at eBay

I found the original article at RP-Online: Media.