A good sign of being old is if you start to use the CDDL (as I did last week). It combines the troll factor of being incompatible with the GPL with rip-off security as companies need to - at least - state that they use (and closed) your code somewhere.

Background: On Twitter, someone who did not think about his choices thoroughly enough has complained that Amazon uses his non-attribution licensed code for a new product of theirs without mentioning him. Well, no sympathy here - nobody enforced the license on him. The tweet made me think about licenses again, though, and the CDDL combines the best of both worlds in my opinion, unless I missed a license in my research. I won’t relicense all of my code now, but I might choose more freely in the future.