I would guess 1/4-1/5 of the current problems should be deleted or edited. Considering there are almost 50,000 problems, and the deleting/editing is done by volunteers (I pay for my membership like everyone else), there will be many ambiguous problems in tactics trainer for some time. I usually delete ambiguous ones I come across whilst playing tactics trainer in both rated and unrated modes, but I prefer to spend time discovering new unambiguous puzzles, and improving my game.
Understood on the number of puzzles. Who does the screening of TT, or who shall I report ambiguous puzzles too? Technical Staff?
I would guess 1/4-1/5 of the current problems should be deleted or edited. Considering there are almost 50,000 problems, and the deleting/editing is done by volunteers (I pay for my membership like everyone else), there will be many ambiguous problems in tactics trainer for some time. I usually delete ambiguous ones I come across whilst playing tactics trainer in both rated and unrated modes, but I prefer to spend time discovering new unambiguous puzzles, and improving my game.