[Daviey]

Yep, there have been many arguments on Debian that it isn't disributable as it isn't compatible with DFSG (Debian Free Software Guidelines).

Also, google code hosting removed it as it wasn't Free Software... which was quite ironic given their 'do no evil' stance.

The real issue is... few 'bad people' think they are evil, and therefore it is too subjective. Licences are not the place to make silly clauses, if you want the main premise to be respected.