The thing I dislike most is when you say something like "trans", are you trying to illicit some kind of different response, even if internal, than I would have to any other person. Because even if you are are trying to encourage "trans people are equal", it calls attention to trans people as being unique. Whether or not I actually agree with the issue they stand behind is one thing, but the effort to make oneself seem entitled to something different from what other people are entitled to is another. Far be it from me to demand how that group or individual lives.
It's so prideful to place oneself or a group ahead of the rest or even suggest that and it annoys me to no end no matter who or what it is.