[kazinator]

> Even the most restrictive FS licenses like GPL will not prevent me from selling consulting services around the product licensed under it.

At least this doesn't prevent buying those services. If I obtain the program from some party A, then A redistributed it to me. Then if I contract B to work on/with the software, B is not bound by the contract because they did not redistribute it to me. However, though I can pay B, neither of us can sell the enhancements though, if enhancements were made.

Moreover, I can't use the software to run any kind of business, because that's might be a product or service that arguably derives substantial value from the software.