I think the attribution requirements of BSD-style licenses can be burdensome. If you use 50 permissively licensed open source libraries in your program, you could potentially have to ship 50 different copyright notices and license texts (all with slight differences in terms or wording) in any binary distribution. A lot of boilerplate and busywork. And then remember to take them out again if you don't use that library any more, or update them if the next version changes them a bit, etc.
This is why I see Unlicense, WTFPL, CC0, etc., as appealing.
If I was to develop something that other people ended up using, I'd like to be acknowledged, and I like to think people will do it – just out of common decency, not out of legal obligation. But, I don't really want to burden people with legal obligations to reproduce oodles of copyright notices and license texts.
(Disclaimer: These are just my personal opinions, not those of my employer. I'm really talking about 'what license should I choose as a hobbyist for a personal project?', not what licenses a corporation should choose as a business strategy.)
This is why I see Unlicense, WTFPL, CC0, etc., as appealing.
If I was to develop something that other people ended up using, I'd like to be acknowledged, and I like to think people will do it – just out of common decency, not out of legal obligation. But, I don't really want to burden people with legal obligations to reproduce oodles of copyright notices and license texts.
(Disclaimer: These are just my personal opinions, not those of my employer. I'm really talking about 'what license should I choose as a hobbyist for a personal project?', not what licenses a corporation should choose as a business strategy.)