Heya,
This thing seems to muck up quoting, so I'll just address relevant points (plus this is the third time I've tried this... I'm getting used to a new mouse I recieved for christmas this morning, *grumble* I keep accidentally clicking the back button, and when I do that I lose everything I wrote).
So... responding to Recidiva.
Gender IC and Gender OOC
It seems more of a problem for men than women, and I think it stems from some underlying insecurity regarding their sexuality. They feel that if they flirt with a female character played by a male player, that it somehow makes them gay. Of course, that's a totally ridiculous reaction, but it seems more subconscious than anything else. This is also the reason why these men jeer at men who are comfortable enough to play female characters and put them down. It's kind of a form of transphobia, when it really comes down to it, IMHO.
I am sure there are some women out there who feel the same way, but they seem much rarer. The only experience I have to compare it to myself, is when I (well, my character) was flirting with this female character, and I was starting to like the player OOC, but then found out that the player was actually male. I was quite disappointed, but not because I thought "ewww I might be heterosexual!", it was more because there was a level of intimacy that turned out to be an illusion. In the end, I am grateful to him for telling me. It hasn't, I might add, stopped me from flirting with female characters, even when I knew their players were male.
Playing Male
I might have overstated my attitude last time. I am supposedly a professional writer (no, nothing published yet), and I also DM Dungeons and Dragons, so I really can play male characters (well, so my players and my partner tell me anyway). It's just that I don't relate to them entirely, and if I am in a situation where I get a choice of gender, I go with what I'm comfortable with.
I, too, resent the heck out of games where I can't chose the gender of my character. Back in the day, before I was completely out, I used to love playing male leads in games, because I could get the girl... Like Wing Commander III, for example. But now... there's no reason. Especially in a game like DA, where there actually is a female NPC my female PC can romance.

Though I must admit to being a touch disappointed by the main trailer for ME2 and it's "band of brothers" theme (it's John Sheperd with two of the male NPCs with him, and a voice over talking about how he was gathering a band of brothers)... Bioware, honestly! You want women to play your games, then you pull this gender exclusive crud like that?! For a split second (and only a split second), I considered not buying ME2 (when it comes out) in protest... But I'm a Bioware junkie... *sigh* Australia Day 2010 is Mass Effect 2 Day, at least for me.
Role Playing Online
I kind of gave up on that whole idea early in the piece, when I realized that games (even MMOs) were far too limited in scope to effectively support real Role Playing. I guess I ran into too many problems with people changing the world to suit themselves, even when it went against the original content of the game world.
For example - Teir'dal using the Faerunian Drowic language (back when EQ didn't have an RP server!). Yes, I know the Teir'dal were based on the Drow, but the similarities were only superficial. But it wasn't just the language, some people were also trying to project Drowic culture onto the Teir'dal. I mean, Innoruuk is
not a Lolth substitute... And if you want to think about it in Forgotten Realms terms, it was like trying to replace Lolth (CE) with Bane (LE). It just doesn't work. I could go on about it, but I suspect it's way off topic.

I guess the experience of seeing that, back in the early days of MMORPGs, put me off RPing in MMOs for life.

Call me an elitist, but that's just my feeling.