That includes using the word "troll". After the various facts about their behavior and motivations there is no additional fact as to whether they are a troll. Using the word troll might easily lead people who only took a quick look to come away with the impression that we generally dismiss non-bayesians as trolls, whereas talking about how to prevent endless discussions not aimed at resolving disagreements seems less dangerous that way.

Indeed. I'm not even sure the user in question was a troll by intention (even if they were one functionally) - being persistent and dense beyond reason is a highly plausible trait of participants in Internet philosophy discussions, after all, particularly when the participant has their very own site all about what they're talking about.

That is, the label "troll" assigns intent in a way that is not actually all that relevant to the problem, which is the behaviour, when you can accurately describe the problematic behaviour.

"I prefer trolls to cranks, because trolls sometimes rest." - Alexandre Dumas (fils) (loose translation)