Suggests that the "other" MMOs model of chat systems are the only viable ones or they are somehow more correct is what is flawed.
Request the feature by all means, who cares if it optional right? but to request it because "every other MMO has it" is not a valid argument - in my opinion - which is probably flawed too!!
I find the comms in game to be - umm pants really. Too cumbersome to use to chat to a player - how do you reply to a player? Never been able to chat within a reasonable time frame or in a way that did not interrupt me flying the bloody ship. Maybe its my setup, my sticks are mounted on sliding trays under the desk so I'm sitting back a bit from the keyboard.
No point in doing a half hearted chat system though, it should have channels that can be user created and can be joined by many, password protected, profanity filtered, toggleable(is that a word?), hideable/movable/sizable chat area, clicking a player name in chat opens channel to that person - perhaps either voice or text, the list of chat features that everyone has used goes on and on. and I think it should feel like part of the ship UI. Maybe that knee pad could be used, look down to glance at the chat, hit a panel key to bring it up like the nav/radar/systems panels. You could get a low bing for incoming messages (configurable from the chat chanel tab of course so you can turn off the universe bing).
It could be done in a way that actually felt a bit more immersive.
I sit on TS most of the time I am playing and if there is noone in when I am then I am really usually playing alone! I don't mind that. From past experience unless the game it set up just right, the social panel gets used to lure unsuspecting players to a happy party where they are immediately killed by the ppl who invited them - not really very social at all
oh and calling Darkfall Online a "niche" game is like saying a Bentley Continental is a bit pricey, DFO is practically a full time job - if you want to get anywhere that is. I saw friends trying to hop to a bank with ALL their gold on them - daft move I know, but even losing an Anaconda pales to the pillage in DFO. It was fun for a while though.