I didn't read all the posts here,but I did read the 1st post.
And I'm gonna be one of those to openly admit that I don't support that sort of thing.No I would not engage in it myself(nor have I) and I would be pretty judgemental if a friend did it.
Why I don't agree with this?Because I think it degrades friendship.I'm not against sexuality and all that,but what's the point if you can't develop a sort of friendship with another person WITHOUT involving physical action?And it comes down to the argument,that males and females cannot beJUST friends(although I wanna believe they can).
Let alone that I view it as a very irresponsible thing to do.Because you get into own to fulfill YOUR physical desires,that's why you get into one.And if the other person does happen to develop feelings for you I think you'd try to get away from them the sooner you can.Therefore ruining the "friendship" part too(but then I don't think it exists if you don't try to maintain it).
As for developing feelings on your own,in that case all I have to say is that you were asking for it.
I don't mind being called all sorts of adjectives for not being characterized by liberty on this department but I strongly believe that some things should be kept "sacred and pure"(sounds a bit cheesy),meaning not involving sexual action.
I personally wouldn't wanna get involve with people who think so little of sex and have aren't too considerate towards their so called "friends".
I hope I'm not getting out of topic here but I would like to add that the case of people who can not be monogamous and devote themselves to only one person is different and I again wouldn't get involved with someone so unfitting for me.
Something extra I would like to add.Personally I am against this because i feel that sex is getting everywhere.On one side it is good that people are more open about their preferences,or their problems and insecurities and how we receive sex education too.On the other hand sex is everywhere,we've become so sex-centric today that there is almost no movie without a sex scene in it,because you know...sex sells.So I think both sex has been degraded and many "products" involving itfor the sake of success.