Do yourself a massive favour and stop using forums for personal problems and use Citizen's Advice instead. At least there you will not get arrogant and **** take responses from people still living in mummy's basement.
I'm not sure American stereotypes apply that well to a mostly UK forum... its especially odd if you're actually from a part of the UK. Do many houses over there have US style basements? IME they don't tend to over here on the mainland.
Suggesting a flat share is hardly arrogant - its what lots of other people would do or did do in his situation...

Arrogant posts offering nothing is not unusual to GD but it still doesn't mean every thread should have one. He may have tried to help them by borrowing money only to be let down when it was time to pay him back. Hardly a time to be pointing fingers is it.