I'm about to launch my current project as Open Source. People should feel free to do with the code whatever they want and luckily there are quite a few licensing options to choose from.
So I'm looking for something very permissive. I've heard of the WTFPL and that sounds about right. There are other variants around as well though.
Should I care? I mean, people should do with the code whatever they want. What would be the difference between not putting any copyright on it and putting such a very permissive copyright on it?