If they are too lazy to ask at the start of the dungeon, they have all the trash up until the boss to ask, if they don't they probably won't read it anyway.

Even then most tactics are simple and just require some common sense and observation there is no excuse to not pick them up mid-fight.

Not to mention why would you want to spoil a fight for a newbie.

TLR not a babysitter stop expecting other people to spoon feed players