Which part of the GPL do you consider to be a "severe restriction" that "makes your project impossible to use"? I agree that you can't legally take a bunch of

Which part of the GPL do you consider to be a "severe restriction" that "makes your project impossible to use"? I agree that you can't legally take a bunch of GPL code and relicense it as proprietary. That's the point. Freedom to/from is a false dichotomy; most rights can be expressed equivalently in either "to" or "from" form.