I notice it frequently in the MtF forums where some individuals still exhibit a certain amount of masculine passive/aggressive behavior toward other people whose post they may disagree with, or toward someone who's transition they somehow feel isn't as legitimate as their own. I don't know if that happens in the FtM forums or not. At any rate it is rather infuriating to see someone being picked on by these mean spirited types. It usually begins with some sarcastic response and escalates.