BTW, I think you all would be amazed at how many bots and scammers try to get on to CT. I would say that probably about 30-50% of the acct requests during a given period are not legitimate.

I try to filter these out by using known email address spam databases (at a given time), IP lookups (and toast from weird countries & hosts), and profile content review. Generally this catches them all - but unfortunately in this particular case I overlooked it.