I don't think it's pointless at all, and your post completely fails to take into account the different circumstances of people who have something to come out about. I know for me, not being out really just makes things much more complicated. I don't need years of my parents nagging me over not having girlfriends / a wife, or whatever. Though really my circumstances as regards the whole coming out thing are rather unfortunate. My entire family are more than a bit homophobic and coming out to them before I'm financially independent isn't really an option. Which means I'm going to have a needlessly overcomplicated uni life (mum loves Facebook stalking and the like) but alas, I'll live. I do intend to come out eventually, if only so I can get a clean cut answer as to whether or not it's OK. If it is, that's great, but if it's not, losing contact with my family is no massive loss anyway as long as I don't need money off them.
(Hi I'm François I'd quite like to join if you'll have me)