The internet is taboo breaking machine. Given an internet user that constantly searches for things on the web, there is a non zero chance of him encountering some sort of content that produces a disgust reaction. If this user continues surfing the web, there is a non zero chance of him encountering the same content again. Repeat this enough times and you have classical conditioning, the disgust reaction is no more, the user tolerates the media, the process through which he might deny adherence to said media is no longer one rooted on physiology, but on rationality, it doesn't take much for rationality to be broken down after that, if you add positive reinforcement, such as social validation in le wiki farms or in le epic 4chins secret club it is almost guaranteed you will develop some sort of tolerance if not outright acceptance and preference (the opposite is possible too). This principle is aplicable to anything, politics, anime, and video games.
You can take this one step further and say that, given an individual that has been modified like this, the necessary process to break his taboos on any other subjects are not as hard, if his intrinsic defenses against deviant behaviour in one topic have been disabled, there are pathways through which new deviant behaviour might be imprinted "if the weird japanese cartoons are good, maybe the fringe opinions of the people that like japanese cartoons might be good, too".
