Oh I 150% agree with you. Its not always the case but usually they are operating using "confirmation bias". They aren't looking for someone to challenge their belief they want someone who is going to tell them what they want to hear to further solidify their opinion. It's kind of funny, sometimes you can predict who they are going to give MHO to just by looking to see which opinion most closely mirrors their own. lol
If I post a question like what is your favourite food, I normally go with one that is similar tastes to me but I state in the update that's why.
With a question with advice, I go with what I feel is strongest, most thought out, most helpful. Even if it's conflicting to my original view, if it changes my view or is a valid and conclusive counter argument, I try to go with those.
I think a lot of MHs are chosen for agreeing with the asker though yes.
I see this all the time. Instead of picking the well-educated, respectful argument with references, the asker will pick an opinion that agrees with him/ her for MHO more often than not. It bothers me sometimes, but I can understand why; I mean, it irritates most people to be argued with. No matter how respectfully you present your views, you'll get called names and attacked by someone for thinking differently. Why would someone choose an answer for MHO when it pisses them off and inclines them to reply with hostility? They wouldn't.
Yes, I agree with you. I've seen this happening too many times. But I do understand it aswell. People like to be right, and will only be happy with opinions that reinforces his/hers. Usually only people who truly don't know what to do will actually choose the most helpful one even if it doesn't support her/her ideas. (usually)