Being critical thinking an important skill of PM how come I see so much here the I agree syndrome

Question

We have different experiences, we have different cultures and this creates a diversity of opinions.

So what does it take some (few) members to express their opinion "I agree with ...." usually after a reputable member? 

Answer 1

I usually either don't respond or try to give a substantive response that does more than parrot another person's response. I've had similar thoughts to your question and Kiron's response.

There are stars for rating blog posts and articles. It shouldn't be too difficult to do something like that for discussions