No, they are not. And the most popular licenses (Apache-style) these days don't even require commercial entities that fork your project to contribute back their changes. Free software / copyleft licenses like the GPL which do require that are these days shunned by many.
"Open source" has become synonymous with "free labour" for a lot of firms, and there's a whole class of SaaS projects which amount to gluing together other people's open source work and then supporting it.
I think this was all fine for people during boom time; you built your resume up on GitHub, you got street cred, often your employer paid for you to work on it. But I think it's starting to lose its sheen for some people.
"Open source" has become synonymous with "free labour" for a lot of firms, and there's a whole class of SaaS projects which amount to gluing together other people's open source work and then supporting it.
I think this was all fine for people during boom time; you built your resume up on GitHub, you got street cred, often your employer paid for you to work on it. But I think it's starting to lose its sheen for some people.