Do you mean on Honda 4 cylinder engines specifically? This is the first Honda I have owned but that seems like a really weird thing. I used to have a '98 Volvo with the 5 cylinder, and those things are notorious for PCV clogging. On those cars, if you put a glove over the oil fill at idle and it slowly inflates, that's enough pressure to blow the rear main seal after a while.
This is way more pressure than that, you can't even add oil at idle, or it will splash it into your face! So I assumed it was pretty bad! That Volvo engine is only 0.4 L more displacement
I definitely still have a problem, since it is leaking coolant at idle only when PCV pressure is highest, and it is definitely running worse than it was 10K ago. But if I ever run into another one of these cars I will definitely check the pressure at idle
