What if only the second type exists, but they always claim to be the first?

The acid test is if when presented with new evidence, someone is willing to change their opinion or if they simply retreat and double down on their skepticism.

It can be really hard to abandon a false belief. Especially if you take the time and effort to shore it up with bad data. It starts with recognizing that everyone, including yourself, is wrong about something.

> The acid test is if when presented with new evidence, someone is willing to change their opinion or if they simply retreat and double down on their skepticism.

My opinion is that on the specific topic at hand of COVID-19 vaccine "scepticism", we are far past the point of rational scepticism being sustainable.

I agree.

5 years of vaccination of a large portion of the population with no negative signs in sight is long enough.

The only vapor keeping this alive is anecdotes from confused people or liars about "vaccine injury".