cosocial.ca is one of the many independent Mastodon servers you can use to participate in the fediverse.
A co-op run social media server for all Canadians. More info at https://blog.cosocial.ca

Server stats:

141
active users

Evan Prodromou

The main reason I wondered is that I think there's some opportunity to have wiki-like fact-checking on the Fediverse, and I thought it might be good to check in with WMF.

But it looks like a lot of the "fact checking" was just semi-automated links to Wikipedia pages. Still probably useful but not quite as good.

I wonder if anyone has built an open source social community notes system...