And you're all wrong.
To those saying he does nothing original anymore: that's because most of what's considered standard in prog-metal now is ripped off him.
To those saying he's just a bad drummer, and have listened to all his stuff: either you're lying to everyone else, or you don't know what hard drumming is.
To those saying Paul Bostaph's better (though Richard Christy probably is as good): have you considered that there's more to drumming than doing the fastest bass rolls possible?
What Portnoy does in Dream Theater is supposed to be standard (though, as I said, it's only considered standard because everyone else started doing the same thing). Dream Theater is not a band trying to showcase any of the musicians, and their songs are complex in their melodic and harmonic aspects. Portnoy's focus in Dream Theater is not and should not be to show off, but to make the songs as seamlessly integrated as possible. If you want to see him do something dangerous, listen to all the side projects, perhaps watch that video going around of that drum clinic solo he did.