Agreed, if you compare the "Open Source Definition" and the FSF software freedom principles, they are basically the same. I'd say there has been pressure to try

Agreed, if you compare the "Open Source Definition" and the FSF software freedom principles, they are basically the same. I'd say there has been pressure to try and separate the definitions and equate "open source" with "source available". And like you say, there are ongoing "attacks" trying to get around gpl style licensing.