LOL semantics. Sorry. Exploited, hacked, defaced. All relative terms, I suppose. You're right. I try to avoid complimenting an attacker by not calling such an act a "hack". When you reduce their acts to terms like "vandalism" there's a 50/50 chance it might shame them a little.
Events like this, as unfortunate as they are, often inspire other admins in the community to harden their servers and applications so it's tougher for some punk to mess things up. Luckily, the attacker didn't appear to mess with the data, although I read reports of the VB app sending emails out to members. All I know is that around 4am I was trying to read an article on their site then next thing I know, the browser window is doing a circular dance onscreen and then animated some lame message. Thought I was trippin' for a second until I realized what was going on. If you ever spot anything suspicious here at ARC, contact Andrew ASAP. =)