I hate the extremists at the descriptivist end of the spectrum. I have no desire to return to four hundred years ago where everyone spelled words as one pleased, and comprehension suffers for it.
It comes in a few flavours. Sometimes an assumption that linguists as people are never prescriptive. Sometimes as an argument for the respectability of established dialect (not to say this conclusion is wrong, only the argument.)
There is plenty of (mostly non-professional IME) "normative descriptivism" floating around.