Is ghItlh to be treated as jatlh, with regards to quotations and reporting things others have written ?
No.
So far as I know, only jatlh and ja' have been
confirmed as "verbs of saying." tlhob is used as a verb of
saying in Power Klingon, but in his interview with
charghwI' about this
<http://klingonska.org/canon/1998-12-holqed-07-4.txt>, he
says that tlhob, jang, and ghel aren't used as
verbs of saying. He was asked about and failed to answer to bach
(slang), chel, chup, jach, and SIv.
-- SuStel http://trimboli.name