Thank you, here seams to be a blog post talking about the process.

https://www.erdosproblems.com/forum/thread/blog:2

I feel it is good to try to get through some of these low-hanging fruit problems for mathematicians to better spend their time thinking about the actual harder problems worth attention. I conducted this as a scientific experiment to see how far the models had progressed and what was now in reach for them.

Subscription required. Any1 knows what the problem was?