Locut0s
Lifer
It sets up a system by which one can judge one's shortcomings. They don't hand out D's to the underperformers in school just to make the "A's" feel good.
Someone like spidey or ProfJohn would be C- to D. a777pilot is consistently D-. matt0611 would be an F.
Pointing this out lets them know where they stand.
If they make no efforts to improve, that's just another failing to add to the lengthy list.
It doesn't happen often, but I do so like it when I am around such people. Only near-equals or betters can serve up a real test.
Wow I didn't know you were an ass hole. Hmm... learn something new every day it seems.