I signed up and I have a couple of observations:
It’s hard to figure out what to do after I sign up, besides adding a Stellar account. Perhaps if you made the leaderboard more prominent or prompt some people to follow. Maybe even have a “first friend” like Myspace Tom.
Additionally, I know the whole concept of social trading is that you compare with people, but I’d be very concerned about linking my real Stellar account to a public profile where everyone can see my balances. I don’t know if there is a solution to this since it’s pretty much the whole point of the project - but maybe a private profile mode where you don’t appear on public leaderboards but could still compare with friends?
Overall, very clean presentation - I could see using this as a nice way to check my balance and gains/losses even if I didn’t use the social features. Well done!