I had a couple of suggestions for improvements but not sure where to put them.
When looking at other strategies to subscribe to I often see their equity curves and virtually always the starting capital their curve begins with is very different from what amount I want to invest. I think it would be helpful if there was an easy way for users to type in their own starting capital and have the curve redrawn. So if a strategy started with $100,000 but I wanted to see if only investing $10,000 would have done well or if it would have been eaten up by commissions, AutoTrade, and subscription fees I can easily do this. The minimum starting capital obviously helps for this but I think something the user could adjust would be more beneficial.
For the leaderboard I see many young and often risky strategies bump to the top. Part of me thinks that if C2 wants to promote more longevity the default tab for leaderboards should be the IRA or TOS option and people have to click to go to the popularity tab which seems to get more of the unsustainable strategies on it.
As always I know improvements require work and not everyone is going to agree on them. Just my opinion.