Since I’ve seen a lot of visceral reactions to certain people’s top ten lists, what certain placements do you personally disagree with that you could accept before you consider a list bad?

Personally, a few come to mind. Mainly Kenny over Yuta, which is excusable simply due to the narrative which can be interpreted as such, regardless of the matchup.

I personally don't disregard a list if it has Yorozu > Yuki, surprising as that may be. It depends largely on how much weight you put on Yorozu's movement. Besides we (unfortunately) didn't get to see Yuki's Domain, so I can understand it.

I can understand not including MBA in a list, as it can be understood that he would only ever use it against Sukuna, although that can be rebuttabled.

And I can personally stand for Hakari being near the lower end of T10. It depends heavily on your interpretation of his statements but it's not impossible, though I disagree with that placement. In that same vein, Geto above 10 and under or at 7 can be somewhat resonable depending on your interpretation again of his statements, though I personally keep him at ten.