Same boat but really I think it depends on context. A serious discussion or someone looking for specific technical advice on something then I totally agree. Shitposts and silliness serve an important role though, anyone can wade in, it’s a useful ice breaker and for the lurky types who maybe need to build some confidence just posting anything (without being obnoxious) should be encouraged.
I can’t imagine Meta believes in the general ethos of the Fediverse, not for one minute. It’s pretty clear how corporations act to dominate or disrupt anything they perceive as threatening their consolidation over “the market”. If the Fediverse gains real traction that’s going to be a problem for them and they will act accordingly.