As a GPL/FSF/Stallman person: That's exactly it. That said, I'll still usually try to contribute it back upstream under the original license; especially if I e

As a GPL/FSF/Stallman person: That's exactly it. That said, I'll still usually try to contribute it back upstream under the original license; especially if I expect to be continuing to pull code from them. I think it's worth it to maintain good-will with the upstream devs, and to reduce my burden of maintaining the patches/merging new changes.