I've just turned word verification on in my settings. There seems to be a lot of spam recently (a lot more than there was in my day), so it's probably the best idea.
I'm going to miss the messages of business opportunities. And I'm going to miss messages of 'love the site'. They might have an objective in spamming, but at least they're polite with it.
And every girl needs a confidence boost every now and then. :(