[crystalarchives]

Disallowing reassignment would leave a finite amount of (useful) keyphrases; my business model is to charge for people who wanted to keep their keyphrases for a duration of time.

Maybe I should make that more clear...

Detecting circular assignments is a great idea though, thanks!

[dmoney]

Isn't that what DNS is for?

I wish you luck, but I can't help thinking rickrolling, goatseing, and spamming other people's links will be a problem.