Diamond+ players are just as capable of being complete morons (like you) as silver players.
Let's take what you're saying and apply it to some other circumstance, will we?
"Before I read someone's dissertation, I check to see if they have a PhD. If they don't, I immediately dismiss their research as being fundamentally wrong and move on. Less published authors should NOT be submitting their research to the scientific community, they haven't done research on a level where they have been actively acknowledged"
"Before I read anything a politician says, I check to see if they are the President. If they aren't I immediately dismiss their rhetoric as being fundamentally flawed and move on. Less successful politicians should NOT be going against what the President says, because they haven't done politics on a level where they became the President."
See how that sounds stupid and asinine? Everyone should have to cite their sources, and so long as everyone does that, everyone's opinion should be considered equally. To put it in an alternative context, it's like saying "<x minority> doesn't know what they're talking about, their opinions are bunk"