Not everyone digs into forums, especially if they play many games and don't stick to one. IMO admin announcements would somehow let people know that *chocolate cookies* is happening. I mean, we can all agree that at times PUBs are unbearable. What does one do when he's in a crappy PUB? Go on the forums in hope to find info about some unlisted and more fun game mode for Legions? Not everyone is aware of organized gaming, and even if so they don't know whether it's good or not. Admin announcements would make people more aware, that's about it. Nobody is being forced into anything.