Saying hi can actually cause disharmony by confusing newer team members:
For example:
> How am I supposed to respond to a bare 'hi' after I asked a question?
Re:Please don't say just hello in chat
by bluefishinit on Thursday July 06, 2023 @06:17PM
(#36623973)
I've never had anyone ask me such a strange question. I think most humans know that when someone says "hi" you say "hi" back, I don't see how that could be confusing to new team members.
I've been remote for 10+ years. I've never once had a problem telling someone "hi", even on large teams. I do find that the people concerned about these type of "micro productivity" issues tend to make for un-harmonious team members and ultimately drag down the productivity of the team, often to the point of chasing out good employees with their toxic attitudes.