I think you need to design it a bit. The idea still stands, I know there will be a lot of people who will say that reddit already exists and reddit has tons of subreddits as well but just because twitter exists doesn't mean reddit is useless and just because reddit exists doesn't mean bitcointalk is useless so with the same idea as long as you can make it look good and get enough people you could totally get tons of people to your website as well.
However right now it looks unfinished, it looks like the design is required to be better, I know not everyone can afford a good web designer but I would say if you could save some money and hire a designer you could potentially get a better look thanks to them and get a developer build it for you, after that you can start working.
Exactly this is a pretty constructive post, it looks unfinished to me. Try to polish the design.
Take a look on these curated lists:
https://github.com/nicolesaidy/awesome-web-designTake a look on dribbble
https://dribbble.com/shots
