When it happens it really p**s me off. I’ve only had web sites defaced twice but it’s akin to a car break-in. I don’t patch sites for friends and family as often as I should (but paying customers sites ar patched:) because it’s hard work and time consuming. Maybe I should try harder but with at least ten sites setup I don’t really have the time.
Having been a hacker (in the true, non malicious sense of the word) when PC’s first appeared I find it hard to understand why someone wants to trash a web site, maybe it’s just an extension of the real work Grafiti empidemic.