I disagree with the assertion that I'm the arbiter of when someone is worthy of mockery. If someone is born that way, it's not fair to poke fun. If someone chooses to look some way, it's fair game. I've done plenty of shit to express myself that hasn't been to others' tastes, and I've had jokes made about it and I've made my own jokes about it. If that person signals discomfort or requests that people stop, then they should stop.
Ultimately, everyone is going to be made fun of for their stylistic choices at some point. Some will be valid, some won't. Some will be funny, some will be not funny.