It was a Dave Matthews Band fan community and I shut it down in 2015 due to server costs, (which the community mostly covered Via PayPal but I had to do fundraisers) looming security issues (drupal and vbulletin integrations that became hard to get security updates for and my own passing interest in the band.

But not because there wasn’t community.

I had a solid moderation and community admin staff and people writing content for the blog.

To your point yes. Any community, band fans to burning man needs new blood constantly or it will die. People move on.

There’s a lot of talk about this in the DOTA 2 community—-fear it will not stay at the top of esports if it doesn’t do more to make itself welcoming to noobs.