Be a rare employer now that doesn't have a policy on this. Thing is, if he didn't have his employer in his profiles then they wouldn't be involved. This is why it ends up as anonymous trolls not someone using their real name and clearly showing on his Facebook page who he works for. That's going to be an immediate bringing the company into disrepute et al so he's never not getting the boot.

The dild0 of consequences rarely arrives lubed.