I briefly worked with him personally. He is 1. a perfectionist and 2. equipped with the intellectual and programming firepower to not get stuck in the resulting paralysis that a lot of people get stuck in but blast through tasks that should be impossible to do at all, let alone with a high degree of quality, successfully, through sheer intellectual firepower. The end result is that he is well known for already having not just one incredible Haskell library, but a number of them.

I can promise you he will not produce and release "slop". He would be an order of magnitude more offended at the idea than you are, I'd imagine.