Hi hbothbot
Your comment 'Why John no longer uses his given name? Nikolas?' is incorrect. He used John well before 2015. For example from 2007:Sydney, May 2, 2007 (ABN Newswire) - Reeltime Media Limited (ASX: RMA) - Company and Strategy Update - Mr John Karantzis, MD; Boardroomradio is pleased to announce that Reeltime Media Limited (ASX: RMA) has published an audio file.
https://www.abnnewswire.net/press/en/36336/Reeltime-Media-Limited-ASX-RMA-Company-and-Strategy-Update-Mr-John-Karantzis-MD-36336.html
Feb 9 2007
ReelTime Media managing director John Karantzis said the deal would allow Yahoo!7 users access more than 1500 hours of content from providers such as Sony, MGM, Twentieth Century Fox, Universal, Dendy, Playboy TV and Hopscotch.