Given that nearly all self-select platform suffer from extensively long running very troubled loans that are by definition yet to complete, I'm not quite sure I see the value in this poll. By using the sole criterion of loans having completed many lenders will not yet have made an overall loss but are fully expecting to do so.
In my case, I have a flawless track record on completed Ablrate loans. I do however hold the Container loan, which defaulted nearly 3 years ago and has yet to return a penny since. Have I made an overall loss on completed loans? No. Am I happy with that situation or somehow assured of eventual profit? No, not really. Not until my money comes back.
I also haven't lost a penny with Collateral completed loans either. T'rific!
I think FS is the only platform I have some crystallised losses with. There are few of "done and dusted, but some sort of recovery strategies are still in place" (e.g. most FC's defaults, SS's Welsh Castle etc). The amount of loss on majority of non-performing loans is unknown.