Common sense and questioning things are the essence of an intelligent human being.
Blind acceptance and mocking those who question things are the hallmarks of stupidity.
That only applies when you are a real skeptic, not somebody who just favors bad/sketchy sources of information over good/reliable ones. There's certainly no lack of people that mock expertise and scientific study on the forums. Is this a sign of intelligence? No.
The "common sense" argument is always the same, but those who apply it usually need more of it . The cop-out "that's just common sense" is often code for "I can't back this up logically, but I believe it anyway".
Common sense and questioning things are the essence of an intelligent human being.
Blind acceptance and mocking those who question things are the hallmarks of stupidity.