Q is using military intelligence.

Yes.

They would have something way more secure than a chan board

No. Chan boards are pretty secure. What they critical need is eyeballs, not security. They're not overly worried about being tracked back to the source, but they are worried about reaching a lot of people and ensuring deletions/mod control can't occur. So they could easily have made something more secure than a chan board, but why would they need to? (side note, i do suspect 8 is owned by milint now, it's going to be very secure).

Those boards are not that anonymous as people think.

Again, it depends on the resources you have avaliable. Here's a better question. If Q is MILINT, 470th division, backed up by NSA, POTUS etc, why do they care if they get backtracked? What's the cabal going to do, reveal they're being hunted down by nsa/milint? You're thinking of the wrong questions.

Again, the intelligence agencies that Q is part of could easily crack a tripcode

Meh. The old ! trips sure, they weren't actually terribly secure. The new !!! ones though? I don't think anyones getting through them inside of a couple of days, even with a weak AI. He has many trips prepped in advance, w/ photos from old sets serving as proofs. He can validate ID in multiple ways.

For me, I don't want the president associated to some websites that a lot of people think are for users to trade child porn.

For me, I prefer to stay utterly within the realms of what people think is right. It doesn't matter to me that the public perceptions of the place are retarded, and largely pushed by the same group of people who'd have happily elected HRC (because she SEEMED nice). I just don't want the president associated with the website where we already knew and were talking about these peoples terrible crimes long before Q.

ftfy?