Whatever the community, whether desired or not, tends to fail in the pulling over. The challenge, from a social media perspective, is the fact their contacts are on the main sites. So even if the communities get zapped, the individual members tend not to.
This is why going after the network effect of users is failing. It is the same story with influencers. We played this song many times before.
Even if they show up here, what is there for the to utilize?