"Proprietary software vendors sow fear, uncertainty and doubt
(FUD) about free and open source software licenses because those
licenses are new and different. More notably, open source software
licenses threaten their business modes—and they want their
customers to believe that those licenses will somehow 'infect'
their organizations. The truth is that open source software
licenses will almost always be more beneficial for consumers than
proprietary licenses. Furthermore, open source licenses rarely (if
ever) impose more terms on software users that are any more onerous
than those imposed by proprietary licenses.
"This article is about software licenses, which spell out the
rules by which you must play to use the software..."