@daniel @evanprodromou I made a new issue here:
https://github.com/w3c/activitypub/issues/419
tl;dr Mastodon has a defined subset of HTML it supports.
Mastodon is the best way to keep up with what's happening.
Follow anyone across the fediverse and see it all in chronological order. No algorithms, ads, or clickbait in sight.