Rarely, I guess after a decade of really crazy brewing instructions, I had pretty much gave up on them.
WORST BREWING DIRECTIONS AWARD goes to RoT (republic of tea) who on their tin directed boiling water for 3-5 minutes for my first green tea (12 years ago). I went so far as to call them, and the CS person said bitter is a sign of a good tea!
Somehow I figured it out on my own.
Fortunately we are seeing better brewing directions from vendors these days.
Thing is, I do understand it is difficult to offer the right directions that are universal for all drinkers. But they should at least be in the ballpark and for the actual tea in the package.