Wow it seems like trust rules above common sense.
I've never understood why people don't just throw 0.05btc wait for coins back and then slowly build up. One guy threw 20btc at the guy without making any checks.
The scam boxes are all ticked:
He's posting behind a tor
he promises massive riches but no safety net
he didn't use his normal writing style
he's un-contactable except through pm
he's not using his normal bitcoin account... the list goes on.
The great part is they only had to compromise his email account, from that they had his forum details and his twitter account (by asking for a password reset).