[justinclift]

What's a "non-permissible license"?

[lsde]

An example of a nonpermissive license is the General Public License (GPL) that ensures users have the freedom and responsibility to share their changes with the community.

[justinclift]

Thanks. Haven't heard of it described as "nonpermissive" before. People generally refer to things like that as "copyleft". :)