I like blind holes, but holes that are completely blind in all situations should be used very judiciously. I'm almost tempted to say they should only be ones that have been around forever like say Himalayas at Prestwick, but I guess I shouldn't limit the possibility that modern architects can do one that works (assuming they can get past the liability concerns Tom Doak often brings up for stuff like this)
I prefer holes that blind but only from certain spots or that offer you a look so you can determine your line. I saw a really good example of the latter at the Midwest Mashie last fall, on the 6th hole at Town and Country. The tee shot is wide open to a fairway that bends right, and ends around the 300 yard mark, where there's a steep rough covered uphill slope and then the remaining distance of the 470ish yard par 4. If you drive up close to that slope your second shot is totally blind, you can see the tops of a few trees behind the green but not the flag. However while you are walking up to your ball you have the opportunity to see and plan the line of your shot.
Dan Kelly pointed this out to us and had us walk off to the side where we could find our lines, and I was able to relate my desired line to a couple tire tracks from where someone (probably ill advisedly) drove a cart up that slope and a tree behind the pin bordering the edge of the course. My shot was "blind" but I knew where to aim - overcoming the blindness is just a mental exercise at that point.
I'm a big fan of blindness as a penalty for playing offline, instead of a hard penalty like water, OB or ball eating rough. This allows a chance for recovery but the poor angle combined with blindness puts a high bar on the skill required for a successful recovery. That's golf in its most ideal form as I see it - the possibility of recovery from one's mistakes always exists, but the bigger the mistake the better your recovery is forced to be if you want to avoid losing a stroke.