The GP never said that open sourcing prevents turning a profit or anything of the sort, just that he/she wouldn't release the source if the goal is to profit from it.
I always get this kind of response whenever I say that. I know you can make a profit with open source code but that's just not my thing nor has anything I've worked on lent itself to that kind of model. I suppose I could have left that phrase out as it really doesn't have much to do with what I was saying and can definitely be taken the wrong way.
Quick, someone tell RedHat - they're doing it all wrong! [0]
[0]: http://opensource.com/business/12/3/billion-thanks-open-sour...