orangina - if you do read all the post you will see the person who is using the mosy vitriolic and emotionally charged language- inviting provocation- is in fact SGB.
You may also note that although she purports to have this live and let live attitude, she doesn't really. She is super-quick to draw far-reaching conclusions about people's roles in society, in a much more condemnatory fashion than any of the monogamy brigade.
Those people who are supporting monogamy here are trying to do so in a rational and non-personal way as far as possible. I think the only "personal" type of comment has been along the lines of maybe non-monogamists have never met anyone they really want to be with and vice versa.
No one has turned round and called them slags or slappers, or mingers or unable to hold on to a man, or selfish bitches who have no room in their lives for anyone.
That would be unacceptable.
Why then is it acceptable for SGB to say that women who prefer a different lifestyle to hers are somehow oppressed, owned, too thick to realise they are being done some kind of disservice by a patricarchal society, and a deserving of a whole host of other intelligence-insulting labels?