That's right: our policy (http://docs.djangoproject.com/en/dev/internals/contributing/...) is that, whenever possible, trunk be kept stable. "People should be able to run production sites against the trunk at any time." This isn't hyperbole: I have sites in production that run against trunk and are updated very frequently.
I always run trunk as well, seeing as how it always has more kickass stuff than the release. The only bug I've ever had to directly work around is the "EmptyQuerySet sucks" bug (http://code.djangoproject.com/ticket/7235).
This is my favorite thing about using open source tools: they are driven by the "end of quarter" profits that put so much crap out in the the commercial environment.
Ideally, we could get that mindset to move upstream to customers so commercial software could have the same mindset, but I'm not holding my breath.
I believe he meant to say "they are not". The quarterly profit incentive pushes companies to push products out to early or create unnecessary versions.
This is why opensource is so nice. If you want buggy code, you download the trunk, its not forced on you.