Most community sites take a while to grow and you really never know what will happen. Even Reddit was sort of a failure vs. Digg and they sold it off to conde nast. It was only later AFTER the sale when Digg messed up on their own and Reddit enjoyed success as a side effect.
You really shouldn't be building a community site if you're so impatient to give up so early. I mean the site opened to public in October 26 of 2016, that's exactly 7 months in existence. It's probably because they raised so much money, which is why you should never raise too much money when you're trying to build a community site. I have never seen a successful community site that raised that much money before getting traction.