At least on the communities i follow. Every so often I come across a thread where i recognize most of the users there even in the big communities with over 30k members and I haven’t even been on lemmy that long.
I disagree about the value of commenting and posting. If I don’t have anything to actively contribute, and I know it, I’m doing you a favor by STFU. Entertainment and disengagement have nothing to do with it.
If I’m using this platform as a news aggregator, that’s 100% passive and legitimate and respectable.