A lot of designers as of late have started to build their clients' sites using WordPress. Is it really a safe and smart way to build sites? I see WP updates from time to time to fix security holes, and I was wondering if it's a good idea to build websites out of it? After all, most clients who have these sites built for them don't know much about web design, so I'm assuming that they wouldn't have much of a clue on how to update WP, or even troubleshoot their site if the new version of the update breaks some feature...