On one hand they have different incentives not to do it. On the other hand is too expensive And third its what Andreas said 10 years ago ... so not that easy with Bitcoin.

A few thoughts on this in no particular order: - pools don’t directly own/control their hardware and hash rate, so it would require prolonged collusion among their participating miners - the cost would be prohibitively astronomical even if they somehow convinced their miners to participate - the incentives just don’t line up at all - it’s good/necessary to practice adversarial thinking, while also important to be mindful of reality when doing so