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”?
That depends on your instance. Kbin gives that grace period, or at least when viewing from Kbin. It should be easy enough to implement, if the instance owner is willing.
Edit: this is an edit to demonstrate.