I didn´t find Mark Davis´s name in that list. So, I think it´s okay to post about him, especially because he never denied his past and his social medias contain pictures of his Porn phase.
I once posted an actor's name and didn't know he was on the list of people not to post about. I was informed and deleted the post immediately.
I think these actors on the list of people not to post about are annoying.
They choose to be in the public eye and then don't want people to comment on them. They deserve to be ostracized and lose the fans they have. If they want people to not comment on them so much, they should have chosen a career without fame or public exposure.