For libraries, the GNU LGPL allows their use in proprietary software (but the
improvements to the library itself can only be distributed under the terms of
the same license). Now, someone who considers proprietary software as
unethical will choose the GPL for her library unless its features are already
available in an equivalent proprietary library (in which case, the
proprietary software will still be created using the proprietary library).
As the permissive/copylefted debate, it was very recently discussed in this
forum... i.e, the last time t3g highjacked a thread (but trolls never get
tired of FUD... that is even a way to recognize them). And, yes, you are
right:
the "simple users" do not care about this debate: in both case they can
use/distribute the software as they wish.
The only difference is whether other developers are allowed take the work and
integrate it in proprietary software. In the case of games, those unethical
developers can, for instance, correct some bugs (so that users feel attracted
to the result) and add some malware (spyware/backdoor/etc.). Another
consequence is that the original free game may lose audience. Who wants that?
The unethical developers only.
