>>abstra+Y2
And I recall the last time I looked at the source (when it was released with Arc), it didn't use a database either. All the data is stored as files.
>>spoile+S5
Why should it be? You can get a long long way by treating the filesystem as a database. The first engineers at Amazon used the same technique a lot, as do I.
>>kansfa+S6
Well, no. There are some exceptions, but most databases add a whole lot of bloat you don't necessarily need. Simple files can be just as fast or even faster than using a big database - which is the most important metric to me.