[Groxx]

Yeah, for Slack/Discord-like purposes, it's entirely reasonable I think. There are of course low-hanging fruit worth grabbing, but "tons of metadata all the time" is absolutely the normal expectation for a system like that. By being federated, Matrix is already noticeably better in most ways.

Anything better is achieved through massive effort and often novel research. Which is wonderful when it happens, but it's not reasonable to point to existing systems and say "how dare you [not do that thing nobody knows how to do yet / nobody has demonstrated scales to real-world use]".