[BjoernKW]

Why wouldn't you? Most websites run on some sort of database. Technology can fail, especially when facing a higher load than expected but generally relational databases are among the most mature technologies in computing.

Removing technical dependencies to avoid such problems is throwing the baby out with the bathwater.

Besides, WordPress is dead simple to set up on almost any shared hosting plan. The static blogging solutions you probably have in mind for the most part aren't.

[bigdubs]

A static compiled blog system like Jekyll, or a simple caching system in-front of the blog.