Well, in all honesty I don't
care what gender you are if you do not already mention same to me; I DO judge you (we all do, all the time), but by your thoughts and statements...which really is all we can do in a medium such as this.
I had to spend a fair bit of time in thought, and yeah - I really can't see any way in which I treat men/women differently on the Internet; in games, a frag is a frag; in discussions/arguments, compelling reasoning is compelling reasoning; and as for trolls, an asshole is an asshole.

For an example, I went and singled out Alja, whom I am
reasonably certain is male, but not absolutely definite¹, so this enabled me to do the following: I took a few threads which I wasn't overly interested in, and Alja was taking part in the discourse; the first several, I set an image of a MALE Alja and read his posts. Some I agreed with, others I didn't; he was usually witty and amusing, yet sometimes an utter dick². Then I went through another couple of threads and looked at Alja's posts after purging my thoughts and fixating of this poster as a WOMAN. Result? The same, sometimes 'right' sometimes 'wrong, sometimes annoying, but consistently sly and witty.
{hope you don't take any offense for being an involuntary test subject, A-M!}
Heck, back when it became obvious to the whole froup on alt.fan.monty-python that 'dancer' and 'empath' were getting serious about each other, someone cracked a joke 'wait til he finds out she's a guy', and that made me think deeply about this whole issue. As it turns out, I didn't have to confront the possibility of arranging a gay wedding, but I started to realize how IRL factors of a poster get masked by a text-only communication medium,
whether one wants them to be masked or not. One can argue that they see differences in the way boys post as opposed to girls, but if there is any such difference, I never seem to detect it with any consistency³ - I've seen a few 'obviously male' posting traits show up with female posters, and vice versa.
Really, a cyber-person's gender doesn't seem to be of any more import to me than whether a cyber-person lost a leg IRL.
tl;dr version: like others here, I don't care if you're a guy or a gal, just be INTERESTING and/or FUNNY.

And just to be a gracious 'guest' to the 'host' of this thread:

What? You asked for pictures of
unicornsguess what? Yeah...
1. Alja has probably gone on the record about this, but this is ONE instance where having degrading powers of recollection is a BOON 
2. Interestingly, often he was BOTH AT THE SAME TIME 
3. Funny story: more than once I thought I detected a 'feminine touch' to an otherwise nondescript cyber-acquaintance's communications...totally backfired in a manner that made me look right foolish!
He77, I might have even done so on here; that's how bad my memory is. 