Disillusioned JW - The Commentary on the Book of James is in the library. The nearest thing to censorship around it was parts of it being rewritten before its publication at the insistence of Fred Franz, as documented by Raymond Franz. (He includes pictures of the redrafts) The information from Raymond Franz is very interesting in terms of what changes were made, but I don’t know if it was particularly unusual for drafts to be rejected and rewritten. Raymond Franz thought it was noteworthy, but he was only at the headquarters for around 15 years. Frederick Franz was editor in chief of Watchtower publications for more than half a century.
Edit: I just checked the James book isn’t in the online library though was on the CD ROM, don’t know why.