All of you who are having a discussion whatever if Transgender is a mental disorder or not, are both wrong and right.
It's still not clear why some people are trans and why some aren't. Some say it's a mental disorder some say it's by "culture" etc.
So just drop it already. When people that are smarter than you that works in this field can't figure it out, it's probably not going to be solved on a GBAtemp post.
Since you responded in a way that seemed to be perturbed, I assume it is because people were zealously hitting the report button over things that they disagree with.
Because you added this to the discussion, one that I was compelled to participate in--out of risk of forfeiting my own representation (thanks
@Lacius), I'm going to carry.
First, I don't think anyone is attempting to solve anything. I think people want to challenge/change the colloquial understanding, and are willing to sacrifice any remaining trace of social dignity for the sake of feeling like "at least I fought for what I believe in". Some people "fake it until you make it", and are trying to "be the change that they want to see in the world". Some people want to accurately understand/describe how the world actually is. I see both states of mind to often be at odds with each other.
Second, "transgender" is defined as "denoting or relating to a person whose sense of personal identity and gender does not correspond with their birth sex." That's a pitiful definition, as it's not just their "birth sex", it's their sex, period. Even if they get artificial genitalia and hormone supplements (injections), they are still genetically what they are. People who don't identify with themselves are going to have a clear disadvantage in identifying with other people. They will identify with ideas that other people, like them, identify with--but they will be at odds with their body. If such a person cannot represent their own body faithfully, who is to say or suggest that they could represent any body?
Whether that is an advantage or disadvantage, is really up to their personal experience and outcome. Not all transgender people think the same, and not all want to be addressed by a specific pronoun. Some are actually smarter than people posting on GBAtemp and twitter.
Third. Consider that the word 'disorder' is exactly what it suggests. A disorder is anything that departs from the expected norm. Calling things mental disorders is a lack of understanding of the situation. Perhaps the norm caused these "disorders" in the first place.