That could be something, a early loan on a sig campaign, someway of people signing over a % of their already completed sig campaign BTC to the loaner and then that way the repay comes straight from the campaign and no collateral or trust worry needed.
It's been discussed before and I think Stunna already mentioned that wouldn't do.
Also, just because someone has the ability to pay the lender back, doesn't mean they will. Just being cautious.
They wouldnt get a choice not to pay back if they only receive their pay after the loan has been paid in some way. Yeah it wouldnt be down to the sig campaign mangers because they do enough work with paying normal pays rather than the extra stuff.