mldq

This is the standard content display license that everyone uses. Even in your quoted text I don't see any hint that snippets can be shown without attribution or the code license.

It also says they can't sell the code, which CoPilot is doing.

Also, in a very high number of cases it isn't the author who uploads.

Repeating your line of argumentation (which occurs in every CoPilot thread) does not make it true.