rwg, 
Latest #FOSSAcademic blog post: on #ActivityPub, the Non-Standard Standard.
https://fossacademic.tech/2023/10/15/APnonStandard.html
This is based on a presentation I'll be giving at #AoIR2023. It discusses 4 key ways ActivityPub is not a standard standard.
Comments welcome! You can comment on it by (publicly) responding to this Mastodon post.