There's a big difference between a git contributor explicitly saying their code ...

tossaway1 on March 13, 2016 | parent | context | favorite | on: Work for only 3 hours a day, but everyday

There's a big difference between a git contributor explicitly saying their code is a subject to a certain license and SO magically declaring it to be so for all code on their website just because it happens to be in their ToS. I think a better system would be to ask people providing code snippets to specify what license it's subject to.