@hugh@ausglam.space it's because clients can't make any assumptions about ActivityPub data using the C2S model. They have to perform full client side parsing and linking, then figure out some way to display this graph structure of data they've been given. The fact of the matter is that ActivityPubs design is overly broad, and no client could account for this. So, instances implement an API offering a simple, watered down format, plus the benefit of having stability even if the software moves to another federation protocol down the line.

There's also the matter that almost all ActivityPub implementations do not store posts in their database as JSON-LD, instead they unmarshal the data from it and store it in a concise format. Reconstructing it for the purposes of C2S would be inefficient and clunky.

@marta@corteximplant.net this is the worst email validation regex I've ever seen

Dude government websites are so ass