E-mail verify is a GOOD THING. They're going to need your e-mail address anyway, for the inevitable password resets and such. And almost nothing drives me more nuts than sites that take down an e-mail address during registration/account creation and then DON'T verify it. Why? Because I've discovered that there are thousands of idiots out there who either don't know their own e-mail address and accidentally type in mine, have a personal vendetta against me (so they sign me up for crap sites using my e-mail address), or want to sign up but use a disposable e-mail address to do so (and again they use mine). Apparently I have a common-sounding-enough (err, you know what I mean) username on GMail that people are constantly signing up for crap and using [myusername]@gmail.com to do so, and I am SOTIRED of receiving it all.
If more websites would verify, then this wouldn't be a problem.