The reason why they can't pay their loan because they kicked out from campaign or the campaign ends, as we know the number of signature campaign now keep declining.
There are longest-running campaigns that paused or ended their campaigns. If this continues, Shasan may only choose who can get a loan or stop his lending business; the lending business is very risky. If the loaner cannot get on a campaign, he might choose to do an exit scam rather than pay his loan, especially if the amount is huge.
Since now it's harder to join a campaign and not many campaign open for new participant, I'd say lending service now is really risky, only 2K+ merits user are high unlikely to scam.
I hope to see new campaigns in the coming days. This is one of the times that there are only a few campaigns running, and I'm sure the bounty managers are working hard to find new clients.
Bitcointalk is still the best place to promote any platforms related to Cryptocurrency, we have an active discussion on any niche related to Cryptocurrency.