Most of my code is GPL or AGPL and always has been. Though sometimes I will put out public domain works.
One interesting counter example is templates. When I found out that one of the templates in inkscape was licensed GPL I had that sinking feeling that we'd just invited a few million people to copyright infringement because they sure as hell weren't going to know about the GPL.
Had to get the original authors to PD their work since it was never their intent to lock users
@doctormo @flameeyes @mgorny Please use CC0 then. Public domain is a concept that does not work in larger parts of the world.