While not officially supported, there are certain chat channels (like GLFF) that gaining a password will cause the server community to fragment because someone decided to be cute. This causing forming a group (of which I have formed many from GLFF) to increase in difficulty because you must dedicate more of the few channels you have to the GLFF fragments just to keep a handle of what's going on - forcing you to drop channels used to keep in touch with friends and what not if you want to have a shot at forming a group.
After seeing this happen for a second time on E, I would really appreciate it if the devs will form a list of the names of the highest population channel from each server, and modify the game code to forbid those channels from ever having a password, thus protecting the general server population from the trolls who are using the channel system against us.