> I've considered selling exceptions acceptable since the 1990s, and on occasion I've suggested it to companies. Sometimes this approach has made it possible for important programs to become free software.
> [..] [S]elling exceptions permits limited embedding of the code in proprietary software, but the [non-copyleft] X11 license goes even further, permitting unlimited use of the code (and modified versions of it) in proprietary software. If this doesn't make the X11 license unacceptable, it doesn't make selling exceptions unacceptable.
> I consider selling exceptions an acceptable thing for a company to do, and I will suggest it where appropriate as a way to get programs freed.
