I don't really consider ripping off Muse and various other bands and then rehashing old stuff newly infused with radio rock progressive. Dream Theater are main inventors of the "prog" style of music, which means doing weird rhythms, lots of time signature changes, ball-squeezing vocals, and a good dose of random solos multiple times per song. Generally, this formula no longer equals progressive music, although Dream Theater used to actually be progressive....now they're more like regressive. Images And Words, Awake, and Scenes From A Memory to a lesser extent as the first too are great. Recently, they have not been great at all though.
I'll name some bands I consider to actually be progressive:
Arcturus, Ulver, Pain Of Salvation, Devin Townsend, Spiral Architect, Age Of Silence, Orphaned Land, Devil Doll, Scholomance, Ephel Duath, Atrox, Solefald, ...In The Woods, Subterranean Masquerade, Vintersorg.
Indeed. Notice how all of those bands have their own unique sound.
And the thread's purpose was to be funny, and really, every single person that posted got that except for you. So I'm going to stop about now. If you can't have a good laugh at a ridiculously funny picture of a band member, regardless of how much you like the band, then I think you should reconsider your thinking.
Edit: I have every Dream Theater album except for Train Of Thought, which I just don't feel the need to waste money on at the moment, as I'm about to pre-order the new Arcturus.
Seriously.....I think even if John Petrucci started strapping a dildo to his forehead at every concert some people would still take personal offense if someone posted a picture and laughed at the hilarity of his appearance.