[quote=Magic Magnum]
People are entitled to post their own opinion, even if others have stated it.If anything it helps highlight it's not just one person with said mindset but multiple people.
[/quote]
Exactly. While having the most people on your side may not be proof that you are 'right', it is helpful to success in an argument, and multiple people arguing the same position can in fact establish their collective proposition better, especially if they are aware of each other and work together explicitly or implicitly.