There is nothing wrong with caution. Too many trads get duped over and over again. How is it that you always seem to find the side of these people? Moderation is better than credulity in these subversive times.
"Caution" my ass. What's he going to do to you? Maybe if someone was a suspected pedophile, you would be "cautious" about letting your children near them. If you were the rector of a seminary, and a partially-Jєωιѕн convert entered the seminary, then you might be "cautious" and keep an eye on him. Even then, you wouldn't publicly slander them. IF it were some publicity stunt, the only thing he'd be trying to do would be to revive his career. If he ends up becoming a Modernist and makes some Modernist statements down the road, then he'd be one of hundreds of millions other Modernists out there.
This has nothing to do with "caution". You're just a skeptical jerk who tends to see everyone in the worst possible light, and now you're trying to justify your statements and your behavior by pretending it's "caution". Your statements border on (and IMO actually are) calumny and slander. Whether he's sincere or not is none of your business, but is between him and God, until it affects you somehow. Charity requires that we give him every benefit of the doubt and presume sincerity until there's evidence to the contrary.
Who are "these people" that I'm siding with? Apart from some situations were trads were too trusting of priests who later turned out to be pedophiles, what harm has ever come to anyone by giving the benefit of doubt to someone who posed no potential threat to them if they were wrong about them? Give some examples of "trads duped over and over again" that resulted in any lasting harm besides perhaps disappointment. What harm comes to me or anyone else if I or others give Taylor Marshall, +Vigano, or LaBeouf the benefit of the doubt that they're sincere about what they believe? If they say something we don't agree with, we simply don't accept it ... regardless of whether they are in good faith or bad. So while their statements or behavior might be objectionable, whether they're in good faith or bad is irrelevant except to him and to God.
Story about St. Thomas:
“Thomas! Thomas!” two snickering friars called, rousing their brother who was bent over his books. “Look out the window—there are pigs flying about in the sky!” Thomas rose at once and bounced to the window incredulously. The friars laughed. Putting the finishing touch on the jest, the saint responded, “I would rather believe that pigs can fly than believe that my brethren could lie.”
St. Thomas was "duped" too, right?
You also tried turn your disgraceful behavior into a virtue, referring to it as "moderation." Give me a break.
You also betrayed that you weren't motivated by any kind of virtue, moderation, caution when you finished your post with

.