As I mentioned in the other thread I think pressure cooker explosions are like Korean Fan Death, a cultural phenomenon. Lids blowing off can happen, that’s a safety feature, but even that requires misuse and inattention.
The basic info I provided in the other thread:
Another point, the main reason a release valve gets clogged up is from foaming or overfilling the cooker. Never fill the pot more than halfway, and soak beans and the like before hand to get some of the starch out and prevent foaming.
And as hard as you try to screw up, it’s still very difficult to get a pressure cooker with a relief system to blow up.