1. Given you have, in the past, seemed to fall into the LIHOP category (even if you hate to be categorized), it does not surprise me that you have not changed your mind much. It is hard for anyone to prove to you that someone DIDN'T intentionally NOT act. The old expression "you can't prove a negative" comes to mind.
2. Debunking has never claimed to be "research". Debunking is using fact, evidence, logic, and where applicable, common sense, to argue against a Conspiracy theory or other myth.
3. The truth movement has few if any HONEST researchers. Cherry Picking quotes, writing misleading and confabulating texts (ala DRG), and trying to swindle publishers into publishing your dimwitted, barely scientific paper through deception is far from "Honest" research.
4. This forum has not tried to change the inaccuracies or "missing pieces" in existing research, investigations, or accounts of the day. No one here has said any element of the investigation (FBI, NIST, FEMA, etc...) is PERFECT. Far from it. As one of the co-authors of the 9/11 commission has admitted, the early version of history are almost always not the full and true story. I accept that. What I do know, however, is as of now there has been not a shred of compelling evidence that anyone but Al-Qaeda had a hand in the 9/11 attacks.
5. I am glad you have come to this forum, if for nothing more than to learn. Even if it has not changed your mind, something has still been gained. Agnostic, to me, is someone who will not commit to a particular stance or view point. Someone who sits the fence. You seem pretty sure the govt allowed 9/11 to happen. That is not agnostic. To MIHOP you seem perhaps a little more so.
TAM