This sounds a lot like opening a flag for having opinions. Not getting along with certain forum members does not make a person 'high risk'.
As for the loan request, he was clear as to what he was doing.
Yes, it's my opinion that he's high risk, and it's my opinion that he was clear about his request. He posted in the lending board, not in the currency exchange board. He asked to take a "'loan', if you can call it that," not a purchase with an optional full refund. Which mean's he'll buy your bitcoin if the price goes up, but borrow it from you if the price goes down. That's not a loan, that's a scam.
Feel free to disagree.
I think you could say the same thing about any loan request secured by collateral on the lending board. That is why lenders should protect themselves by securing collateral far above the value of the loan, and insisting on terms regarding automatic liquidation of collateral if market conditions go against the borrower.