> If you're a prescriptivist, then open-source should be hyphenated for the same reason full-time, user-friendly, long-term, etc. are. That's how English works. You don't make the rules, and neither does OSI.

Honestly all of these exist in both hyphenated and unhyphenated usage in my experience and for long term and user friendly I’d guess unhyphenated gets more usage

>> If you're a prescriptivist, then open-source should be hyphenated for the same reason full-time, user-friendly, long-term, etc. are. That's how English works.

> Honestly all of these exist in both hyphenated and unhyphenated usage in my experience

...which is descriptive, not prescriptive.