I'm building Mindwall; a Pinterest for business ideas

Hi ! :)

I'm David, from Spain. I'm here to collect some feedback for the new idea I'm working on... It's called Mindwall and is like a "social blackboard" where anyone can pin an idea as a post-it and the rest of the community can give direct feedback with 'Like' or 'Dislike'. Similar to this subreddit (https://www.reddit.com/r/AppIdeas/)

It would be a very simple application with a simple looking. What do you think ? Some feedback is appreciated !

The way to monetize is to create private spaces under subscription or pay to feature your idea in the top of the blackboard :)

Thank you !