Webster Tarpley claims that Assange is a limited hangout.

JA is "provided" with classified documents from various sources, which may or may not be legit.

The Arab Spring (a Wikileaks inspired movement) turned out to be a disaster for almost every nation that was involved. IIRC only Tunisia had any limited progress. Every other involved nation has turned into a charnal house. Particularly, Libya, Egypt, and Syria.
It's an interesting coincidence that every one of the Arab Spring countries that has opposed the actions of Israel at some point is currently in ruins. Does anyone think this is a coincidence?
The Arab Spring was probably an organized event (in hindsight).

I don't know if JA is legit.

He may be an idealistic pawn (willing, or unwitting).
However, he has an acute understanding of geopolitics and is certainly no dummy.
Either he feels 9/11 is an issue of lesser import, and a general distraction to the glory of his work, or he has been influenced and supported by some agency.

He's a well informed individual. I suspect the latter.

I am glad that he published the "leaked DNC e-mails" which were provided by the late (murdered) Seth Rich. Seth Rich is a hero.
To his credit JA did indicate that his murder was related to the DNC leaks.

I think JA has integrity for the issues that he values. He's certainly sacrificed a great deal more than most would be willing to endure.