Within niche areas of interest, there actually are communities between content creators. I've seen some neat collaborations. But I'd say there is no community at all in the comments.

Plus the dregs of the Google+ community. Look at the people commenting on the announcement - social media gurus, 'futurists', wannabe viral video producers...

Exactly my reaction when I saw it. The recent drama/scandals doesn't help either.

I'm apparently out of the loop; could you help me: what scandals? what happened?

The phrase "Youtube Community" makes me think of the sub-communities, such as the ARG communities - which use Youtube for video hosting, Patreon for funding, independent web forums (such as Unfiction) for data gathering, and apps (like Horror Amino) for community management.

Were Youtube to build feature parity to each of those sites, they might see more communities self-contained within Youtube.

The word "community" is now where the phrase "enterprise software" used to be. The first thing you do when you hear it is groan.

Reminds me of twitch chatters

Like Youtube (and just about every social website ever), size matters - bigger is better to a point of critical mass, then it's all downhill from there.