If that even works. Do white guys who apply say to themselves "those requirements are BS", and minorities say "I don't meet those requirements so I shouldn't apply"? Or is it white guys are more likely to not read them as closely? Or white guys are more likely to feel "I'm good enough to do it regardless of what it asks for"? Or something else? Because just telling minorities "the requirements are more suggestions than requirements" isn't going to help if it's any of those.

None of the above?

You know how peoples used to have folklores and stories that got passed down? Well, we still do, but the culturally transmitted information is now stuff like "Oh, yeah, those requirement lists are bullshit".

Of course not. There are even certain minorities which are known to extremely exagerrate their abilities and accomplishments (even when they wouldn't last a day on actual job).

I really think it's as simple as having friends/peers in the know-how or not. Some people have family members, classmates, maybe even majority of their social circle working in IT which obviously exposes them to inner workings including this issue with job requirements. And then there are people whose social circle is far from IT so they just don't have confidence to (pretty much) lie on resume.