While AG is certainly very active on discord and reddit, people who aren't active on these platforms sometimes have no idea about what's going on concerning events(would work very well with the new rec.net event calendar), problems and bugs.

A noticeboard in the rec center could be a fun and natural way to spread info to a wider audience. If there's nothing happening it could be filled with suggested custom rooms.

Edit: You could also use this to increase traffic towards the subreddit and discord.