Enable users to block specific tags
Enable users to block specific tags, such as 'first-person camera' in order to avoid being recommended categories or videos that trigger motion sickness.
This would also be helpful for avoiding content that may be distressing (e.g. blocking the horror tag) and just for avoiding whole genres of games that don't interest you (e.g. FPS tag), rather than having to mark individual categories for single games as 'not interested'.