Phil Lewis I think they’re extremely common – there are bazillions of threads about geometric progression vs. linear, whether race ought to imply class, ascending vs. descending AC, maximum level, how to incorporate skills (or not) etc. etc.

Leaving aside the acrimony, I have the impression that the emphasis is subtly different. PbtA moves are so.. structural that eight of them can produce a completely different gaming experience. The undulations and gyrations of OSR games give me the vibe of a community of hackers looking for the most comfortable fit possible.