The forum in question is only available to verified crew of the airline concerned and not a public forum.
As moderator, I try to delete comments that are personal or defaming, but in the end it is the responsibility of the poster to make their comments benign enough to not motivate anyone to take the action necessary to find out their real identity.
No such comments have been made to date and the only poster that was identified had his identity plain to see from information in his profile and username.
The person that was forced to resign did so with no proof that they had posted on qlhccforum.