Conversation

You know people who join a Matrix or Discord channel, then after a few seconds ask, "is this place dead?" and leave without waiting for an answer? Or they say "hi" first, you greet them back, but they already left.

When I got online, #netiquette guides for IRC made sure to point out that people idle in the channels a lot, so if they fail to notice you, *say something first*. Preferably what you came to ask.

Now teaching people how to behave is considered rude. Enjoy the results.