For all I know, those dots under the 0% line could have made greedy-in-a-bad-way decisions and could deserve to lose money / learn a lesson. I think the asset class has been dumbed down a tremendous amount, for a long time, in order to have broad/mass appeal - but the time has probably come that it functions more like a marketplace, where people take their lumps (or dots) for making bad allocations.
Of course, I was quite happy with the way Prosper 1.0 worked, and came out of that okay, even though "most people" did not "do well".
The training wheels are off the bike - dress accordingly or wind up with skint elbows and a cracked dome. That chart is a clear warning...