While I agree in general with the spirit of the OP, you chose bad analogies. Watching a video of super mario would be ONLY affecting you.

Here, you are affecting potentially up to 23 other people who have invested time and energy into learning the fights. By going there with no knowledge of them, you are wasting other peoples time. If you find a group willing to help you, wonderful! I would do so myself. But if you join a group of people that want to get the content done, sorry bud, but you ARE holding them back.