@ebassi I’ve found Discourse’s onboarding features smart—messages essentially getting you to learn the etiquette, to better understand where the other person is talking from (whether they’re a newcomer or not), and so on. It probably helps lower the barrier to entry and make interactions smoother.
(I find it intriguing though that we need such “social prostheses” in the first place; is the on-line etiquette too different from real-life interactions?)