Yes, I am serious. You judge people according to the following standard, namely that they must question everything they believe, hold as true/a fact and so on.
So now I am going to question that - have you ever questioned your claim that all people must question everything they believe in? How do you know that it is fact of how the universe works or could it be a subjective and personal belief and thus not a scientific fact?
In other words, you must answer according to your own universal standard; i.e. everybody must question all beliefs; whether everybody must question all beliefs, is a belief itself or a scientific fact?
Have you ever thought about that or has it never occurred to you to question that?
Remember this is a site for skeptics.

So you question your own claims according to the same methodology you apply on everybody else.