As a researcher, one of the databases I depend on most is WorldCat -- the ginormous international repository for publication information on every book and serial available in just about any library, anywhere. It takes a few hours of fiddling with it the first time you use it in order to learn its quirks, tricks, and shortcuts, but once you do, you can find anything.
Then, this morning, I woke up to a new, "simplified" version that has transformed it from a precision tool into a blunt instrument. I believe that the phrase that my fourteenth-century documents would use to describe my feelings about this, after only 90 seconds of use, is odio capitale.
I am not amused.
UPDATE: Check out the comments section for the response of someone who seems to be affiliated with the WorldCat team. I am impressed.