> "In fact, this is why people can legally sell open-source software made by someone else -- even if that is ethically wrong to do." Why/how is it ethically wr

> "In fact, this is why people can legally sell open-source software made by someone else -- even if that is ethically wrong to do." Why/how is it ethically wrong? If the license permits commercial sale (GPL, for example), then as long as the seller abides by the license (by making available a free download to the source code in the case of GPL, for example), then it is ethically valid because they aren't violating the license. If you develop open source software with a license that allows commercial use, you can't possibly get angry at users who fully abide by the license and commercialize the software, let alone call them "unethical." Either you don't distribute your software with a license that explicitly allows commercial use, or you can't possibly call a commercial user "unethical." That's the whole point of a license -- to definitively spell out in an unambiguous way the legal terms of usage. With GPL, it's not even close to being a "loophole," that license explicitly allows commercial use.