The issue with specifically this kind of thing is the same issue as with the ambush political "influencers" that go into the streets and try to get people to debate them. They give themselves however long they need to prep and think up responses to any possible argument they can conceive and mentally prepare themselves for a debate and all of their opponents have none of that luxury.
At least with the "change my mind" guy its an unintrusive passive invitation to what he describes as "not a debate but a conversation." with some of these folk they go up to random people and stick a microphone in their face and immediately start quizzing them on shit and then try to intellectually bombard their no prep on the spot didn't know the debate was even going to happen until it was already going thoughts.
The people this post is talking about probably fit in there somewhere between the two, leaning slightly more on the invitation side but without the unintrusive or passive parts.
There's also the fact that the majority of people aren't educated in formal logic, and as such will have a much harder time identifying your run of the mill cult tactic logically fallacies and incorrectly assigned burdens of proof, resulting in people flustering and trying to argue against unfalsifiable claims or trying to formulate arguements against unsupported claims with no actual substance to argue against.
At least with the "change my mind" guy its an unintrusive passive invitation to what he describes as "not a debate but a conversation." with some of these folk they go up to random people and stick a microphone in their face and immediately start quizzing them on shit and then try to intellectually bombard their no prep on the spot didn't know the debate was even going to happen until it was already going thoughts.
The people this post is talking about probably fit in there somewhere between the two, leaning slightly more on the invitation side but without the unintrusive or passive parts.