Yeah sure, you got ripped off. Go exchange it ten times.
The problem is, people come to these threads and all of a sudden they try these stupid tests and see that theirs isn't perfect, so they become obsessed, and so forth, and so on.
Mass hysteria.
People will follow the herd right off the cliff. You can't help but wonder if yours is defective.
These threads go like this: A borderline OCD person posts photos. You look at them, and of course don't see anything. Then someone says: "Oh yes I see that, it's very clear, you got a bad one, go exchange it". Then a person will proudly post that theirs suffers nothing and is "Perfect". (This doesn't help, trust me

).
It goes on like this sucking in others and growing like a cancer.