[PainfullyNormal]

This happens at the end of every hype cycle. People are dissatisfied, everybody is looking for the next big thing, and a bunch of people and companies throw spaghetti against the wall to see what sticks. A winner will eventually emerge, but it can take some time. A good example from the last generation: who remembers OpenLaszlo or YUI?

[rzzzt]

Raises hand

Just their (reasonably detailed) documentation, though; I didn't do anything productive with either project. Also Ext JS, a descendant of YUI.