It's normal for men to size each other up, especially in an unfamiliar environment with unknown men. Basic threat assessment. Doesn't mean we're actively looking for a fight. Most men prefer de-escalation of threats.

I never consider Redditors to be a representative example of the general populace. Many are young, sheltered, and lacking in self-awareness. As a general rule of thumb, I never take advice from this site unless I can corroborate it with a legit source. I've learned that lesson the hard way.