In a way, it does make sense, as there wasn't a year zero unless you're into astronomy. On the other hand, it's not worth getting all uppity about, because you could also argue that the first decade was actually from 1 BCE (year zero if you're in astronomy) through 9 CE because a decade starts when the tens digit increases by one (e.g. 2009 to 2010).
BTW, haloboy and IronBeer, "AD" stands for "Anno Domini" (Latin for "in the time of our lord"), not "after death" as so many falsely believe.
To the non-Christians who are offended by the point of time we reference eras in relation to: there's nothing we can do about it. It was established a long time ago and would be harder to change now than it would be to change the US to SI units. If you're offended by the terms "Before Christ" and "Anno Domini", you can use BCE and CE (Before Current Era and Current Era).
To those who weren't offended, I'm sorry for misinterpreting and wasting your time. You may now return to your previous pleasant discussion.