I don't think there's disagreement - my score from 2016 is the one this article is about. The max is whatever the game's RNG will give you, and is probably some

I don't think there's disagreement - my score from 2016 is the one this article is about. The max is whatever the game's RNG will give you, and is probably somewhere close to 1.3m. As top-tier play has gotten better, the ceiling has increased. We used to think this score was about as good as it was going to get, but only a few years prior, we thought the max was closer to 1.15m. Wild how things change.