I recognise usernames, so it feels like conversations between people are happening rather than just throwing stuff out there for it to be ignored.
Other thing is there are small communities with 1-2 mods so you know them and they aren’t usually “the superuser” that mods 10 different communities.
I don’t say there are none of them, just that it is usually small and you recognize the mod that just steer his small community.
When I joined reddit, it was at least a year—probably 3 years—before I was banned from a subreddit—r/AskReddit. I’ve been here little more than a year and I’ve not only been banned from a notable community here, but when I asked to be unbanned—once, then letting perhaps a few weeks pass, then twice—I got no reply.
(and I’m not going to ask a 3rd time, but will simply create a [community-I-was-banned-from]2.)
