Lol people that tell me they've watched a video but never done the encounter is the same telling me they don't know a damn thing. From my experience, videos are worthless as those same people get hit by the mechanics they supposedly "prepared" for many times until they actually get experience in and get used to the timing/patterns. Video does nothing more than give a player a little confidence, experience is what you actually need. Simply telling someone what to look out for, or who to follow when needed is about the equivalent as watching a video but not "spoiling" the fun of a new encounter, and some people don't actually want to so I'll never understand these "did you even watch the video" people, because it's damn silly.