Gould: Oracle to Red Hat: It's Not Your Father's Linux Market Anymore

'Proprietary' is a loaded word in the context of talking about open source software and open source companies. He may be a shitty writer and did not think the use through very well, he could be intentionally baiting people hoping that his blog will show up in places like Slashdot as free advertising, or he could just not give a shit that people are not going to take the time to think through what he meant.

You can draw your own conclusions to which one it was. I don't really care a whole lot, either way. I just hope that the comments will not dwell on this word for very much longer.