While I see how Copilot's data gathering can be considered unethical, in the end I ask myself, does it matter? Would it have been of any concrete advantage to open-source programmers if Copilot hadn't used their source code? I can't think of any
Well, if you chose a viral license like the GPL, you do not do that to have your code and knowledge being reused in a non viral (possibly closed source) licensed solution. So this is a fundamental issue at least GPL minded authors will definitely mind and fight against.
