You're not allowed to refer to management figures by name nor anybody else who does not authorise it. It's got nothing to do with whether they are on pprune or not.
(I'm not trying to police anything, I just think it's bad form to be using an HR person's name on a public forum without their consent - and somebody has previously posted her surname too - which I suspect is why that particular post has disappeared indicating the mods take the same opinion as me).