Completely right about that, there's a couple of topics in this forum of loans not being paid back on BTCjam.
The lenders are named and shamed, but they just don't care or now some poor guys personal information is up there while they might not have anything to do with it. (in case of forged documents)
I do think there are some valid alternatives outside of this forum.
Salt also comes to mind, but they do require collateral in the form of crypto.
https://saltlending.com/
The thing is, if people have valid collateral, they usually don't need a loan