I really, really hate that 99% of all UX designers are basically graphic designers who are good with visual flourish but without the tiniest bit of interest into half a century worth of HCI research into what makes interfaces visually easy to read. So they end up with whatever graphical look is hip without understanding the usability consequences. That may make a page look good as a whole in the "conforms to current graphic design trends", but it destroys the ability to organize the individual elements.
EDIT: Also, skeuomorphism when done right can be pretty, and if you really want you can still combine it "flat" design by using hints of shadows and depth for better readability - look at games like Snake Bird for examples of that. In general I agree with Bret Victor that the best place to look for good interface design these days is successful computer games, because if it doesn't feel right to play (that is: interact) with, the designers tend to throw it out, and it is the most likely place to see experimental interface design.
