I was going to like this comment with the 'haha' smiley, but then I thought about the forum members who aren't straight and at least one who has very bravely gone completely trans. How do they feel about these kind of gibes - all in good fun or seriously not?
I've noticed a lack of posting by a member who has identified as of native ethnicity: "As a person in the Caribbean of mixed ancestry with brown skin, and red-brown hair, our society has been formed to continue the divisions among people, even within the same family." This person last posted June 11, 2020. I can't help but wonder if the general tone/direction of forum discussion is a bit too much for some of our members and has lead to their departures?
I have to admit that the stories of Renee Richards and Elizabeth Carmichael served to give me new perspective on the trans issue. How fine is the line between political correctness overkill and just being considerate/compassionate of all persons different from ourselves? Plus, it's been established that wicked humor is one of the few tools available to counter all the over-the-top far-Left posturing bombarding us daily. Is there a middle ground there somewhere that appropriately offends but isn't offensive - or am I overthinking this?
It's worth keeping in mind that the rough humor found in pseudonymous parts of the internet (and believe me, this forum has nothing on certain other venues) is just about the only way the vast majority of us have of coping with the relentless woke propaganda being rammed down our throats 24/7 from every direction ... which, IRL, you better agree with or else.
So that question of empathy cuts both ways. We're constantly being ordered to prioritize the well-being of minorites of various stripes, regardless of how that affects us. And for many of us, the effects are profoundly negative in terms of strained relationships, diminished professional prospects, and the spiritual toll of constantly biting our tongues. What I'm getting at is, there's precious little evidence of empathy, in the wider culture, for the majority of normal people - it's all one way. Those with secondary characteristics conforming to officially 'protected' or 'diverse' classes would do well to remember that.
Another angle is that, again drawing on my experience in rougher bars on the internet, there are people from minority backgrounds who engage with those groups quite enthusiastically. The key is realizing the distinction between mocking the ideology that elevates secondary characteristics above all other concerns (inevitably implying a degree of mockery of the characteristics themselves), and mocking individuals. If someone identifies so strongly with their secondary characteristics that they take such humor personally, then unfortunately they've - perhaps without realizing it - accepted the premises of that ideology. Which is a deeply ponerized ideology. On the other hand, if they don't so identify, but prioritize opposition to an evil ideology, then they have no reason to be offended, and won't be.
I'm not suggesting that the posters you've mentioned have such issues. It's just as possible that they have other things going on in their lives and are too busy to do more than lurk. I myself come and go, depending, and I'm sure that's true for many.
In any case, were what you bring up to be addressed, it could be done only with a brutal content moderation policy that would have an instant chilling effect.
Final point: if someone does get offended by a joke that isn't personally aimed at them, that's a fantastic opportunity for a mirror to be held up, which can assist them in undoing their programming ... assuming they're willing to do the Work.