I think the long-standing impression left by 5.0 (despite carrying explicit warnings about being appropriate for early adopters) carries a good lesson for us: this sort of lore is surprisingly sticky. It doesn't matter that 5.0 was very much an anomaly that wasn't repeated, and that recent .0 releases were very stable. I suspect end-users like John are going to avoid .0 releases for as long as they use FreeBSD.