e.g currensee's Trade Leaders for forex traders, Collective 2 (could be cool but not for option trading)
Collective2 is a fat piece of pie. Why don't you try it? First month's for free (general rule there), then you can charge smth about $50-100 per user.
Yes, Sure If there is a way to publish my live trades with TOS and get paid from subscribers thats cool.
Another issue with Collective2 is that they do not value accurately the margins in vertical strategies.
True. And I realized they don't publish amount of followers of each existing system featured on their site; So gave up on the idea for now