You're entertaining. Why would someone admit something if their personal experience says otherwise?
Once upon a time before I had ever used a Mac, I totally bought the rock-solid-stability myth. What else could I do, I couldn't disprove it, and Windows (95/98) was horribly unstable at the time so it made sense that there must be a more stable system out there. Then in the 90's I started working at a web agency with lots of Mac users, and realized that crashes weren't so much an exception as they were a rule. I don't think anyone at the agency got through a day without at least one crash in Flash, Director, Photoshop and all that stuff we used.
In '05 I bought my first own Mac (G4 mini) and while OS X was certainly more stable at this point than OS8 and 9 ever were, it was far from rock solid -- the worst crash magnet probably being Safari, with Finder as a close second.
Leopard... yeah, very stable.

Arguably Apple's buggiest release after 10.0. It wasn't until 10.5.3 or thereabouts it could be considered stable.
Then there's my iPhone which runs some sort of pocket version of OS X. Pretty stable actually, I've read a lot of horror stories but none of them have happened to me. Safari on the other hand (again with the bloody Safari) was hopeless for a long time. The worst part was that it crashed when you didn't do anything. You could go to a web site and say hey, this looks interesting, then leave the article on the screen and start reading, not touching the screen, and when you had read half the page Safari just went *pop* and you were sent back to the Home screen.
Both Windows (XP or later) and OS X are stable enough for anyone to get through the workday (one crash won't kill you unless you forgot to save since morning). I would not avoid either platform due to stability issues, and nor would I choose one over the other due to superior stability, because the difference between the systems themselves is too insignificant in this respect. The stability of the third-party applications you choose (the Mac version of any given app could be much more unstable than the Windows version, or vice versa) is much more significant and could prove a dealbreaker. Other than that, the choice of platform should be based on personal taste and preferences, application availability and other requirement-oriented factors. The end.