[araneae]

> The best way to be anonymous on the internet is to be anonymous, which means posting without any name or identifier at all. If that isn't practical, then using a non-meaningful pseudonym and not posting anything personally identifiable is recommended.

A third approach is using a word that means something and thus is not unique at all.

Unique strings for usernames means lots of accurate hits. If you google mine, there will be lots of hits but none are me.