@ Hane; I think it's like walking on thin ice personally, I'd love to see it in but while being able to sidestep a lot of the stigma associated with marriage. I agree that it'll be impossible to please everyone, but I'm also of the mind that we can find some sort of diplomacy here^^
There's been suggestions of changing the name to something else to shake the stigma associated with the word 'marriage', also making it a pact ceremony where players can define what that pact means to them - whether it's lovers or best friends swearing allegiance to eachother. Also there was the idea that it should be player-run instead of GM-run like it was earlier in XI, so that square could just say 'we're allowing characters to marry [or whatever term] eachother' and not even talk about the same gender issue at all but leaving genders unrestricted.
If we don't get SSCM in the game, I don't think a lot of people will leave... they'll certainly be a bit disheartened but I think that aside from marriage there are plenty of other things to draw them to the game. While marriage isn't central to any of us ingame (Who plays an MMO strictly just to get married?), the consensus among the majority who've voted is that they would be disappointed if it was restricted to only a certain portion of the playerbase. D: