Of course you can combo into ultra's in SF, it just takes a bit of practice. I'm far from good at SF and yet I have on rare occassions combo'd into Cammy's.
Switchblade you are right in that most of the time online SF all you fight is Ryu/Ken/Akuma, it is what drove me away from the game in the end (I will go back), but several other things you said are just not true. There's a nice bunch of SF players over at EventHubs and as for generally meeting people online, most games are more than half full of idiots. I've certainly not come away from this forum thinking most MK players are relaxed easy-going types... Much of what you say applies to all online fighting games, it's all about the win for most and you do meet a lot of muppets. So I suupose I'm not saying you're wrong, but just slightly off-track thinking it's just SF.
As for fluidity, I'd say MK is more often faster, but that doesn't mean SF is less fluid, it's very fluid and smooth, it just rewards a very different style of play.
I say all this, not as a SF fan, I am actually playing a lot of Tekken online at the moment, because of the 3 fighters it's the only one I can currently play lag free for some reason.
