Just putting out there I trialed 5BTC on the site just to see how it goes etc... call it an experiment with 100 bucks that I can afford to lose, knowledge is power. I got my knowledge and so far 2/7 have overdue payments with no contact or information. As a lender with only one feedback I can't leave feedback myself even though I've been rooked for BTC. That's wonderful.
Waste of time and resources. They really don't do a fucking there that would make anyone pay a defaulted loan. At the rate of payback, your money is better left in your wallet. So basically they skim to collect their fees and don't do much to engender real trust in micro loans the way a payday lending institution would.
Don't like what I'm saying? I could care less. My honest opinion is simply to avoid this site entirely. I hold no malice in this matter; as of now , it's forgotten.
You likely just picked the wrong users to invest in. Sometimes you win, sometimes you lose. But you definitely learn with time who you can and cannot trust. It makes no difference to me if you do or do not continue to use the site, but I find it to be a learning experience. Like you, I just decided to put in a couple bitcoins to experiment, but I have actually made a couple bitcoins with my investments. I have also lost some due to scammers, but that's part of the risk. I would give it a little while before you totally make your decision about BTCJam, but thats just my two cents.