Ego. They&#x27;ve put a lot of work into the entropy-tracking thing and they don&#x27;t want to admit that it wasn&#x27;t needed.<p>(Ego is the reason for a bunch of other security misfeatures in Linux. Securelevel comes to mind, where Linus explicitly said after fifteen years, okay, this was in fact the right model all along, you can merge it, just call it something other than securelevel so I don&#x27;t have to eat my words about securelevel being a mistake.)