Looking for feedback on a stock market related business idea I have (NOT PROMOTION)

I am in love with the stock market and I recently came up with (what I think may be) a fun idea: A website/app for ranked trading and investing. Here's the rundown: 

\- You connect your broker account or manually input all positions to track your portfolio

\- There will be daily, weekly, monthly and YTD leaderboards based on your return.

\-From there it's simple, outperform 90% of other investors in the time period? You get a high rank and officially earn bragging rights. Blow 100% of your portfolio buying penny stocks with 1000x leverage? You get a low rank and get shamed by other users.

Personally, I think this will be great, it gamifies the stock market and allows you and your friends to get a little more competitive.

I do have some other ideas as well, however these do stray a little from the core of the idea:

\- Social feed to share ideas on your stock picks

\- Built in news tab

\- A daily quiz about recent news, where correct answers grant you entries into prize draws.

\- Built-in trading companions to win prizes.

I'm really excited about this idea and I would love to make it happen. If there's any feedback you have please let me know in the comments.