If any Mr. X hasn't or didn't publish(ed) any 'Hindu' content then his material shouldn't be used in the answers here.
What I mean with 'Mr. X with Hindu content' -
- Commented on any religious text like GItA.
- Got initiated or himself initiated someone who commented on/has written/wrote at least one religious text. (This point also covers the one belong to some religious lineage)
Example, Sir Osho has written commentary on Bhagwat GItA & ViJNanabhairava tantra so his content can be given ticket to have place here in the answers - He is 'Mr.X with Hindu content'.
But what about Sir Shirdi Sai Baba? Is he 'Mr. X with Hindu content'? As far as I know, he didn't publish any 'Hindu content'. So, Sir Shirdi's content shouldn't yawn here.
If his content can crawl here in answers, then I don't see why 'Tao Te Ching' or 'The power of now' can not crawl here in answers.
PS: Of course, their content can be added in answer extraneously.