Question on port matching

Some here think/come off like you should just take others word as fact and never think about it yourself...
..oh no.. don't question it...just eat the **** served to you and share it with the rest.lmao
What I see is a lot of is this.
"Fred" ridiculing "Sam" as a fool for believing what "George" has to say. Then "Fred" tells "Sam" that what "Fred" has to say is in fact the truth. Usually accompanied with a lot of personal attacks about how much smarter "Fred" is than "George". Followed by personal attacks from "George" about how much smarter he is than "Fred". Then "Carl" and "John" each pick sides and join in.
All justified as trying to help Sam make an informed decision.
Why are so many people angry?