Also - He was asking to borrow 0.3 BTC and repay 0.4 BTC..
That is a whole 33.333% interest! Quite high interest..
That's $650 in interest he is offering to pay.. Ouch..

It is somewhat the mark of a loan scammer to offer such high interest, so people are more greedy to fund the loan for them, put up with more risk for that profit, and the scammer isn't planning on paying back so they don't care what the interest is anyway.. Make the lenders rush to fill it, make them make hasty decisions..

Suspicious..