I realize that, which is why I avoid anything to do with transexuals on LW: I won't defend my feelings since I know perfectly well that objectively there is no reason to dislike such people, but my feelings exist anyway and mean that anything I might write on the topic is fruit of a poisoned tree.

IRC, on the other hand, is ephemeral and officially not publicly logged so I don't put as much of a filter on my stream of consciousness.

Finally, I want to point out that I really don't bring up the topic very often either in absolute numbers or as a percentage of my IRC comments, with 2 mentions in 2 or 3 days being an exception. Since while the channel is not publicly logged, I do keep private logs, I can substantiate this:

$ head -n1 .irssi/irclogs/freenode/#lesswrong.log
Log opened Sat Sep 25 10:12:30 2010
$ grep 'gwern>' .irssi/irclogs/freenode/#lesswrong.log | wc --lines
 115,700
$ grep -e transexual -e trannie -e "trans " .irssi/irclogs/freenode/#lesswrong.log | wc --lines
 79
$ grep -e transexual -e trannie -e "trans " .irssi/irclogs/freenode/#lesswrong.log |g 'gwern>'
16:23 < gwern> chelz: it is an obvious prediction to check, although I wouldn't want to compare the trannies to regular hetero males
16:27 < gwern> chelz: well, that's why I suggest comparing transexuals on testosterone suppressors and estrogen to those not on; they will hopefully both be equally oppressed, and the hormone difference will be reflected in how big a cut they take
= 22:31 < gwern> now with 23% less gwern, but 40% more trans fats
= 13:15 < gwern> (or maybe not. I don't actually know the details of transexual's equipment.)
= 14:52 < gwern> shminux: maybe she turned out to be a trannie
= 15:16 < gwern> 'One of the most interesting things about the effects of testosterone and trans men is that we have something else to compare it to. Non-trans men do not. And non-trans women do not, which is why I wrote the post “It’s the Testosterone: What Straight Women Should Know.”  When I started testosterone a dozen years ago, I expected my sex drive to increase. The “horror” stories are a part of trans man lore, passed down from generation to ...
= 23:31 < gwern> realitygrill: could always become a transexual. asian guys seem to make good trannies :)
= 11:53 < gwern> haha '"Cardboard Box" (1974 venue unknown; trans David Lewis 1980) is an admirable evocation of his talent, and is an Absurdist SF autobiography of the titular container, from its creation on a factory conveyor belt, through its lifetime as a receptacle for various items. Eventually, the box is blown into a lake, where it exalts in Zen-like Transcendence, at last entirely filled, and disintegrating with such fullness.' ...
= 21:56 < gwern> as well say that transexuals happen 1:3000 so there must be a gene for being transexual!
= 13:16 <@gwern> partially women's rights? is that a new euphemism for rights for transexuals?
= 21:33 <@gwern> you hate trannies?
= 16:28 <@gwern> haha a transexual reincarnation love song - http://www.youtube.com/watch?v=RCPsa0pkAHA how very japanese
= 23:20 <@gwern> ... the two fundamental theorems of welfare economics whatsoever. Or I could point to Edward Prescott and say that being an economist means re-inventing statistical wheels, and deciding that they should be hexagons. Or I could point to D. McCloskey and whatever it is they're into this decade.' http://delong.typepad.com/sdj/2012/09/brad-delong-resmackdown-watch-cosma-shalizi-argues-that-brad-delong-is-an-atypical-economist.html subtle trans burn
= 21:22 <@gwern> Kiba: if you could teach someone how to have balls, trannies would save a lot of money
= 19:15 <@gwern> 'Gender: Male / Female *This cannot be changed after registration' oh niconico, why are you so bigoted against trannies
= 20:55 <@gwern> startling: we won't judge him for it. well, maybe you won't, I find trannies really creepy

I won't include any context here because Freenode's "Channel Guidelines" strongly discourages public logging and even quotation without the permission of all parties involved:

If you're considering publishing channel logs, think it through. The freenode network is an interactive environment. Even on public channels, most users don't weigh their comments with the idea that they'll be enshrined in perpetuity. For that reason, few participants publish logs. If you're publishing logs on an ongoing basis, your channel topic should reflect that fact. Be sure to provide a way for users to make comments without logging, and get permission from the channel owners before you start. If you're thinking of "anonymizing" your logs (removing information that identifies the specific users), be aware that it's difficult to do it well—replies and general context often provide identifying information which is hard to filter. If you just want to publish a single conversation, be careful to get permission from each participant. Provide as much context as you can. Avoid the temptation to publish or distribute logs without permission in order to portray someone in a bad light. The reputation you save will most likely be your own.

(It would be tedious to get everyone's permission for a reasonable context, and likely in some cases impossible as people appear & disappear.)