I first started putting my glasses (Vinum Bordeaux and Burgundy, and Wine Riesling) in the dishwasher two years ago when I got a new dishwasher (top of the line Whirlpool). I figured that even if the glasses started getting cloudy, it was still better than the greater risk of breaking them by washing them in the sink and leaving them in the rack to dry.
So-- I estimate that my glasses have been through the dishwasher at least 50 times each (using liquid, powder or disk detergents).
NO PROBLEMS. No clouding, scratching or any other ill effects.