But there is something common between all those projects, dead code. Dead code can be classified in some few categories:
- Legacy code.
- Refactoring-result code.
- What does the '0' mean?
- Why is the first line still present there as commented code?
- Is it really important to have it there?
- Should I remove it?
- What about the other parameters?
- Why it was commented in first place?
If it's dead code, I mean, it's already dead, it should be removed for the sake of other developers. If you are working with Revision Control Systems (and I don't know why you shouldn't), the commented code is not longer required, you can revert or reapply a patch whenever you want.
In summary, get rid of your dead code, kill it, burn it, bury it.