These Leaderboard Rankings not only affect the subscribers who are trying to find good systems, but it also hurts the vendors who have good systems, but happen to have a low ranking for the reasons discussed. Here is the message I received right after hitting the Subscribe button within sharp Sharpe ES:
If I was new to C2, that message would likely scare me away. I think the intention of this warning is good (preventing people from subscribing to bad systems and then blowing up their accounts), but I think a better measurement is needed.