For me it's a conscious choice. On general principle, I think that open-sourced library code at least should almost always be BSD-licensed. Furthermore, there a

For me it's a conscious choice. On general principle, I think that open-sourced library code at least should almost always be BSD-licensed. Furthermore, there are many good libraries on Hackage which I might well want to use in a commercial product some day, and a BSD license will make that easy, no matter where my code ends up running. Releasing my own code under the BSD license is therefore also a small gesture towards maintaining this state of affairs.