Yes, I saw that. Many of the posters - both WGs and punters - on that thread seemed to think a guy was immature etc if found it difficult accepting that his girlfriend was shagging other blokes. 
Difficult conversation to have that one (not from experience), if a guy knows a girl is working when he meets her then put up and shut up but the vast majority of guys wouldn't be able to accept it if it was announced a few months or years into a relationship.
I do recon though that a regular punter would be far more accepting of his wife / GF whoring herself out