Re: How about a slight wrinkle in this plan?
When you consider that there is a user who snagged the actual handle "Anonymous Coward" (tsk tsk, ElReg ... roll accounts should be sacrosanct), you and I both know that the trolls will snap up aardvark, banana, custard, (and Aardvark, Banana, Custard, AArdvark, Ardvaark) etc. Time stamps are easy to implement, and I have no idea why ElReg took the option away.
Agree on proper threading. There are perl modules for that ... and of course threading with timestamps would be the best of all worlds.