So yeah, I can see why a queer friendly instance would defederate an instance whose admins promote/defend that sort of rhetoric. Hexbear might have jumped the gun (as I told them at the time- the turnaround time was less than 24 hours and the head admin had no chance to respond) but the blahaj admins weren't great either

Some people like being fat. Some people like being women.

A person who likes bobs and vagene entering a committed relationship with a trans man would be toxic. Ditto for a person who likes fat people entering a committed relationship with someone who is trying to lose weight. That said, firstly, I don't see anything wrong with a one-night stand in either of those scenarios, which is what the original question was, and secondly, more importantly, you'd have to stretch really hard to say that a person who's into a little chub and a person who's perfectly happy having a little chub entering a committed relationship is in any way problematic. OP is into women. If anyone unironically tries to call someone a pussy-chaser I'm going to recommend them for commitment.

OP saying he'd have sex with a trans man who hadn't transitioned yet is no different than a lover of booty saying they'd have sex with someone who hadn't lost weight yet. Sure, it might be a little confusing and/or disheartening for his potential sexual partner to be told that he likes them for the one aspect of themselves that they're working to change, but if it's only for one night, and that person otherwise has a good support network, and, most importantly, it's two consenting adults, I don't see the harm.

You could even say it is a sign of a “chubby chaser”. Likewise for transness.

Yeah, if you're deeply stupid. Or, as you suggested, so traumatized by life that you have no understanding of normal human interrepationships. Just because you are open to the idea of having sex with a fat person, that does not make you a chubby chaser. That's not at all what that means.

In your analogy, the proper response for the fat person would be "that makes me feel bad" and NOT "you are a bad person". Take some ownership for your feelings. People are allowed to have sexual preferences. That is 100% normal. If it's triggering for you, then it's on you to manage your response, not lash out.

Also, people are overly sensitive

Understatement of the year. I think we need to acknowledge that some trans communities can get extremely toxic. Woe unto you if you get caught in their crosshairs for whatever reason. Sure, this may stem from trauma or transphobia/discrimination, but we shouldn't pretend it's not a thing.

My pet theory is that trans people are excluded from so many groups that groups of trans people by necessity get very insular. And insular groups tend towards shittiness, almost universally.