Learned Shiva "blind" learning FCOB "blind" even left a progressive group for that as I really want experience it the way it was meant.
Point is though--- you want to learn blind get other 3/7/23 people that are on same base else its a spoil session. We have a blind runner static (8 man as common) with a few helpers that jump in and respect our ways (funny that ppl with T13 kill begin to understand T10 mechanics better when with us... i laughed a lil XD ) For dungeons same people of static and friends no fight explainations... even if someone ran something before... ignore mechanic till others figured out
Harder was to organize a full blind alliance... we got to dragon on first try in then some people had to leave and as premades cannot get replacers we stopped there. So we ended up to have a second half spoiled go (some even had finished and explained a bit too much ) but still learning a fight guideless is absolutely worth it