The people who are really bad are the type to rationalize away mediocre grades. Some of them ended up around the top 10-20% too though, so that makes them way worse because their entitlement just doubled. To be clear, I'm not saying mediocre grades make you stupid, but if you try to hang onto the delusion that you're smarter than everyone despite mediocre grades, then you need a lobotomy.
I think what people say about their grades and what they're actually thinking are different, probably they're just posturing. I don't understand what kind of person who was median or worse who would want to talk to other people about it unless they went somewhere that still has good outcomes there
IDK, when I talk about grades it's almost always super general, I really do believe there's a stigma here re: talking about specific grades but maybe it's just an everyone else thing?