Reporting this here is fine. Stepping up and labelling it what you did, maybe a rethink there?
Like many have said, this type of advertisement sometimes are actual players, rather than staff members. Contacting would probably be the only way to figure it out. Then again, denying is also easy.
Still, its good to make it known to other owners.
PS: Sorry for necro, my friend told me about this happening, and thought I'd check if it had been posted here. So yeah, once again, sorry.