One thing to remember is that a certain percentage of any population will be high on the psychopathic/sociopathic scale and low on empathy. In the general population around 3%. Internet trolls usually fit this profile, and will be willing to go to great lengths to masquerade in order to get the addictive fix that social and psychological sadistic activities bring them. And you can expect, in addition to non-trans psychopaths who are drawn to support sites because there are vulnerable victims to prey on, that at least 3% of preop, nonop, and postop trans people will be psychopaths as well as genuinely trans.
Beyond the psychopaths, there is a larger group who don't derive satisfaction from causing harm, but are simply very low in empathy skills and so are prone to both misreading others' intent, and also prone to saying incredibly insensitive things because they don't understand people who don't feel the same way they do. Some studies and anecdotal evidence suggest that trans individuals are more likely to have empathy deficits than the general population because various brain differences tend to coincide. I would posit that at least 10% of trans folks fit on the low empathy spectrum. They can learn to follow rules but need supervision and feedback because they can't model others' responses easily.
Finally there is an even larger population of trans folks who have lived socially isolated lives because of dysphoria and because of trauma. They have the empathy but lack healthy social experiences so can be rude and hurtful without meaning to be. Unfortunately many of us had very unhealthy relationships growing up, and repeat negative patterns in our adult relationships until we get enough therapy (group or individual, and in a lot of ways Susan's can be like group therapy) and meditation, and feedback from friends, to finally heal and change.
