Whatever are you talking about? We've been using PostgreSQL in production for 5+ years now, and it's been capable, very fast, and rock-solid all along. I've been using PostgreSQL in other projects for over a decade and it's had all 3 along the way, although speed has constantly improved.

I'm all for cheerleading for PostgreSQL (I really love the tool), but that "a few years ago" comment is just wrong and not really very fair.