That is not a problem with the word but the thing. It does not matter what opposition to bad skepticism is called. If it exists as a definite idea, it will acquire a name, and whatever name it is called by will be used in that way.

"New rationalism" is even worse: the name suggests not that there is such a thing as bad reasoning, but that reasoning is bad.

Perhaps a better idea would be to not call it anything, nor make of it a thing. Instead, someone dissatisfied with how it is being done on LW might more fruitfully devote their energies to demonstrating how to do it better.

a term that should be useful but is overwhelmingly used only by those upset at their personal toe being stepped on ("critiquing me? You're doing skepticism wrong!"), to the point where it's a pretty useful crank detector.

Well, isn't that a self-evidently dangerous heuristic. ("Critiquing me? You're just doing the calling-me-a-pseudoskeptic crank behavior!")