[tubbzor]

I'd opt for a 'post anonymously' button as staunch suggested.

The only reason is not everyone that uses throw away accounts are doing so to troll others. I've seen several submissions where a person posts something extremely personal (ie. problems with their current job to dealing with depression or contemplating suicide) and they would not post under their real account for obvious reasons but still seek the support of this community. It could be a bad idea to hinder the ability of these people to post situations like this anonymously and promptly.