For anyone interested: https://meta.stackexchange.com/questions/399619/our-partnership-with-openai?cb=1
It's a shame because the Stack Exchange network is the best place to find good answers to questions and if the good contributors are disgruntled over this (and they probably should be) it will be the death of the site.
I haven't read into it too far but it would be better if they only allowed it for new questions - so people know what they're getting into.
My favourites are the ones where they were closed as a duplicate, the only response is absolutely dripping with snark almost berating the OP for not searching the issue first, but that one SO post is the only relevant thing that shows up in a Google search
When the question specifically links the "duplicate" and explains why that isn't relevant to the current situation.