I use noStrudel which is basically a full fledged NIP standard supporting client. So yes, I have reddit style communities on my clients, Medium style blog posts, Twitch style streams and videos etc etc. nostr is much more than a Twitter clone unless you're a Primal user, then you're stuck with a twitter clone.
Discussion
So you're seeing "like comment tag two friends and share this note to..." type stuff on a reddit type platform in the nostr ecosystem? I doubt it, I assume you're talking about the twitter type part of nostr
But the "version of nostr that's based on reddit" I mentioned doesn't exist yet, people only pretend it does. If you're seeing that type of stuff on nostr's version of so-called "reddit" that's because it isn't based on reddit to the extent of having the actual functionality which resulted in reddit's content quality back when it was good