The fact is that if you were to post the same thread on a predominately heterosexual forum you'd get similar results.
I highly doubt it would be comparable, but I think it also has to do with the fact that left handed people are more likely to click on a thread like this and comment in it (someone that feels special and has something to say) than a right handed person.
Left handed. I used to hate being left handed because notebooks were hard to write on in grade school, plus, I am the only left handed person in my entire extended family. Seriously.
Lady Gaga is left handed, too.
I also find it weird how people react when they find out I'm left handed... like I'm a unicorn or something. I have to say, I rarely meet left handed people IRL myself, so I guess I get it.