No, they’re for you as the user only.
I mostly use them to 1) track interesting people like there’s a guy on here who’s a Jellyfin Roku app developer. I don’t remember his name, but pay attention to his comments when I see his tag. 2) people who are bad faith trolls whose usernames I won’t remember but don’t want to get sucked into investing time answering their questions when they’ll just be racist asshats in response.














Seems like a question for the reddit sub in question.