Yeah I'm not sure about the idea for public rooms. The public servers don't really need any advertisement imo. Everyone knows they are there.

One thing that could work though is maybe for the 5k tourney. If there arnt enough people could be announced, or to announce it starting, but I thinks it's so common that the globals would be going out all the time. Maybe if there was an auto tourney that would go on once every hour it could be good so you wouldent miss it, but the 5k tourney goes on all day and you wouldent have to wait long if you did miss it.

I kind of like the tag idea. Could be interesting. I don't think it's really needed but it would make globals a bit cleaner.