I suppose punters and WGs can be genuine friends on occasions. I personally don't necessarily see anything wrong with that...
But for me personally I only contact a WG when I'm looking to arrange a booking. She's selling a service and that's why I contact her. That doesn't mean I don't get along with the girl, or that I think she is only nice to me because that's her job, but simply put how exactly would I know that is not the case if I was to start behaving all friend like towards a prossie?
It just doesn't matter though... My interest is getting sex from her, and paying for the pleasure. Wonderful, actually, that I don't have to be her friend to get that from her, and that she doesn't have to like me as a friend to give me that.
For all I know every single prossie I've met could secretly think I'm an ugly bastard with the personality of a dead fish. But as long as they don't think I'm a timewaster, a twat, or unhygienic and are willing to continue taking bookings from me, which I'm happy to pay for, then that's all I care about.
I do wonder if punters who preach this we are all friends mentally realise how many prossies complain about timewasters bothering them with idle chit chat. How annoying and exasperating that can be for them. I bet they just think they are the special ones - she doesn't mind me doing it.

Bet you still have to pay just the same as every other punter, even if you do get the occasional little discount.
Prossies that encourage it, well good for you

You're friends with
all your clients outside of bookings are you?

Can I expect if I meet you I'm buying not just sex but a friend too?

I really don't think it's a clever thing to encourage a punter to think about you. If you are actually friends with some of your punters, good for you, but you know what, in my opinion best to keep it private, as I don't need to know. Or are you only going to give me good service if you like me as a friend?

It's not that I think of it as a 'war' or that I post things about a WG to give her a 'kicking' because I'm a nasty person. I say things about a prossie simply because this is a review site for punters to share information to help each other to make informed buying decisions. It's as simple as that.