For myself, I pretty much have two modes of operation. If I plan on completing a fight with a group of friends (which, admittedly is pretty much all hard content at this point), I will not watch the video. In that situation, I prefer to come in without expectations and have some fun trying new things out with some friends. If, on the other hand, I plan on doing it with people who I do not know already, I will watch the fight on Youtube. I personally find this to be a totally reasonable concession. Given that I am a Scholar - both literally and metaphorically - it seems pretty reasonable that I would research my enemy before running in there book blazing (quite literally I'm afraid).

The thing a lot of people miss about watching videos - and I am referring to both those who refuse to watch them, and those who watch them mindlessly - is that there are two very different things you can get out of them. The first is the types of ability the enemy has and the situations in which they will use them. The second is how to "correctly" deal with those situations. A large majority focus only on the latter, using it as the basis for all of their assumptions and dismissing entirely the value of the former. But the first part is where the real value is, allowing you to make informed decisions about your behavior throughout the fight.

Now, on the other hand, I welcome the opportunity to explain the fight to someone who hasn't done it before. After all, from my perspective I get to show off how well I know the fight, and from their perspective, they can open a dialog and ask questions, rather than mindlessly consuming what information they are given; everyone wins.