I took a look at the current traffic and you’re absolutely correct, lemmy (as of 0.19) has a proper schema with everything covered!

But lemmy doesn’t use “plain json”, it annotates some fields with the schema, just not all of them, which makes it a mess. You either do json-ld proper, or you don’t do it at all.

no Federation with instances that use altered versions or proprietary versions of AP.

It’s especially funny given (the last time I checked) neither kbin nor lemmy actually followed the spec properly. They ignore the jsonld requirements and resort to field names, that, by the spec, should be dropped.

Edit: lemmy is actually good now!

isn’t threads already several times larger than the whole of the “fediverse”?

I wouldn’t quite call Lemmy’s protocol much friendly either. I’m trying to implement it and it’s a bit of a mess, honestly. There’s absolutely no documentation, private database specifics leaking into the public interfaces, and an absolutely horrendous authentication scheme.