Wouldn't you want to be in a server with people that have the same interest as you? Every server has a cap (as we saw), wouldn't you like the majority of the people taking up those slots to be doing similar things? If I'm waiting in a server queue, I'd like to know that there's going to be a good amount of people in Siren's call when I do finally get on.
I think they should be labeled on the Server list in-game, so those who don't frequent the forums know which server is for them.