To be clear:
It can be used to mess up everyone in the room with you.
It can be used to prevent chargen of unused names.
And it has no way to undo it.
Are we SURE it has no way to remove them? I'd like to know that if I pressed the wrong button on accident when trying to do the right thing, that I could undo having done the wrong thing.
While we're in the ideas category:
What if aliases were personalized to the viewer instead of the viewee?
Personally I think this would solve all the IC problems created by the whole 'seeing people's names' if people used their description by default until you '@alias tall mano as Ripper' or '@remember tall mano as Ripper'.
Obviously this would require a little rethinking of the emote system, but nothing that couldn't be accomplished.
It's an idea. I'm not saying it's a great one.