[behnamoh]

Frankly, that's one of the reasons I'm not interested in GNU GPL (at least, yet). I would rather go with BSD License instead.

But really, the benefits that come from open source programming vs. writing proprietary software are just a one-way road: while proprietary software can benefit from ideas found in the open-source world, the open-source community cannot benefit from proprietary software written by big giants like Microsoft or Apple. So the bottom line is, the major purpose of writing open-source software is maintaining the FreedomOfSoftware, not preserving your rights as the programmer.

Now to address your question, I would try to look at it as a "force majeure" to keep maintaining my code and improve it in many ways. Like it or not, you have actually started a competition, and to win that, you have to keep making your code better.