/insult emote and the other' player's mother

Hello

Currently, my /insult says

Nepenthe thinks XXXX is a son of a motherless ogre.

A direct insult to the other's parents.

But if you whisper the player "You're the son of a motherless ogre", voila, you get suspension and maybe ban.

What are the limits? Whose son should the other be so you don't get banned?
The emote insults the other's mother/father by calling him/her a motherless ogre, but if you RP and say "Yea right, you're the son of a motherless ogre", you get banned (Great GMs, do you collect them from africa?)

If you said "you're the son of a cute ogre" , do you get banned?
If you said "you're the son of a two headed ogre" , do you get banned?
If you said "you're the son of a stinking murloc ogre" , do you get banned?
If you said "you're the son of a moslim" , do you get banned? Don't laugh, this happened to my friend. Apparently being a moslim was bad so the offender got warned. (again, GMs from Zimbabwe)

Please clarify the subject of the "/insult" emote.

Thank you.