[chii]

Blizzard does not lose their rights to it when somebody uploads the source code publically. If someone decides to use theor source code that they did not obtain a license for, blizzard can always sue.

Reading and learning​ from said source code is, and should not ever be illegal.

[corobo]

Uploading it is using it. The uploader would be sued if anyone. Anyone else using the code would be sent a C&D first.