the "rotater", "oops", and "it's a mess" achievements, (as well as, i suspect, "cutter", "wait, they stack", "stack overflow", "storage", and "get rid of them") and shapesanity don't check that the player has extractors. also, any check that requires delivering shapes to the hub almost certainly also should require belts (though for hard logic, any balancer should do)
the "rotater", "oops", and "it's a mess" achievements, (as well as, i suspect, "cutter", "wait, they stack", "stack overflow", "storage", and "get rid of them") and shapesanity don't check that the player has extractors. also, any check that requires delivering shapes to the hub almost certainly also should require belts (though for hard logic, any balancer should do)