I'm getting it too when I looked. Probably caused by post #4 in the thread from
slightllyrestrained as that contains a link from ca.hondajet.com - presumably your browser is trying to load the content and hondajet is saying "members only". Ah, I then read the next post and it mentions "the link to the press release has now been removed and taken offline", which would explain the login prompt.
Wijet