mike777, on 2016-September-01, 13:50, said:
easy weak 2h opener, again partner and the opp need to know we might have this hand type.
This is similar to the situation where someone plays all their two bids (including 2C) weak. "Partner knows I might have 28 points when I open 1S" but he's still going to play the odds and pass with a random 2-count; if he doesn't then you're going to be in a lot of hopeless games when you have the more typical 20 and play him for the more typical 6-point minimum.