A short note: yes, it makes a difference if we are questioning because we want to block or prevent something - or if we are genuinely questioning to seek to better understand something. This is reflected how often, if we ask someone else 'why are you doing that?' it gets interpreted as 'I think you shouldn't be doing that, and I'm going to blame you for doing that silly thing, but now is your time to give an explanation, and that explanation better be good if you want to avoid being mocked by me!'. Uh oh, why can't the word 'why' mean mere 'why' - that would make neutral civilized friendly discussion just that much easier.

Also, it is necessary to question also questioning. 'To question everything' doesn't automatically mean to 'always criticize everything on every occasion' - we might find out that in some situations we get better consequences by going with the familiar social patterns, or rules of thumb. And, indeed, I think the ability to question ones own beliefs is far more useful than the habit of questioning what the others do. Questioning others while being dogmatic oneself is bound to lead into similar issues like 'assuming moral superiority' in the story of Hule and Vince. But examining ones own beliefs, that tends to lead to improved self-understanding, which also often leads to improved benevolence and improved ability to understand others.