I think this is the exact kind of thing we should be talking about. There are some truths that I think we can brush aside if we let ourselves, such as:
1. All people experience trauma. Whether you think one person's trauma is more important, acceptable or comfortable to discuss doesn't change any of that.
2. Some trauma is objectively more severe than others, but not necessarily subjectively more or less. A light-hearted example--we have 4 kids. It's not fair for us to make fun of our friends/extended family who have 1 kid and complain about certain things. It's also not okay for a drug addict to make fun of a porn addict, or for a fat person to call their bulimic friend "shallow".
3. As evidenced above, people cope with trauma in different ways. What causes one person to question their sexuality might drive another person to overeat or another person to self-harm or escape into fantasy literature or video games or whatever other means of avoidance is calling out to them. Nobody deserves to be shamed for this (in fact in a lot of cases that's part of what keeps them in the cycle).
We should be able to talk about this openly, though, and even make light of it at times, having enough social grace to know that people with different (or even wrong) opinions or who are telling a joke aren't attacking anyone or spreading hate or whatever. I think at least one real issue here is a lack of trust. If I don't believe the person on the other end of the keyboard has my best interest at heart then I'll probably take whatever opportunity I can to be offended by what they say.