That said, we have been listening to feedback as well and have trimmed back a little of the information. We also may consider (for the future) not documenting specific abilities for very difficult bosses like Sinestra, or heroic modes on final bosses like Ragnaros, or even what exactly causes Onyxia to deep breathe. Getting solid constructive feedback that we can consider to set into motion for change is always welcome and useful to us.
As someone who is 13/13 heroic... PLEASE do not do this. I liked the dungeon journal a lot as it was on PTR. If someone feels they had to ruin their fun by using the dungeon journal to keep their world/US first that is their OWN fault, and if they don't like it, TOO BAD. Those guilds are not even the majority of hard mode guilds. The dungeon journal is GREAT as it is on PTR now. Choosing to raid heroic modes should not mean having to use unreliable out of game information when you have added this awesome feature. Please do not exclude any heroic bosses from it. :( Plenty of people use strategy guides for various games because everyone plays games for a different reason. For some people thinking up strategies is fun, some people don't like to think up strategy but like to work together to execute a strategy that's already there, others just like the lore/environments of raids, etc. Everyone raids for different reasons, so please do not assume that every guild clearing hard modes chose hard modes because they like to figure out complicated strategies on their own. I don't dislike normal modes for lack of complexity but because the damage/healing requirements are really low (zzzz) and like 5 people can die and you still kill it easily.