Like, obviously around here you don’t subscribe to a subreddit, were not on reddit.
What about referring to the Original Poster as OP?
What about etiquette like marking edited posts and comments with “Edit: added words or explanations of edits made”?
You can skip subs, flairs and the gamification aspect (trophys, medals, gold, …)
Most people need to learn about communities and instances. Rest should be similar. OP, comment, post, DMs, …
Etiquette varies. Some people here like people who are nice to each other. Of course this doesn’t always work.
I also pay attention to upvote people who reply to me. And I keep shitposting to the dedicated communities.
The dynamics and technical details can be different in detail. Some things don’t work as smooth (yet). And we’re only a few people here compared to the big commercial platforms.
lemmy should have post tags for better filtering, the other things are just like you said.