You just have clocked over 5000 posts, congratulations on that one by the way! So I am sure you have seen it all. But that does not mean that everybody else here has. Yes they can search for old postings but many want to participate in the discussion rather than just lurking. I would venture that apart from the core member group this forum has a relatively high turnover rate for active posters and, to a lesser extent, members so for many people things are "new".
At any rate, there is obviously something as an average price for LT. I would however seriously doubt that that price is 1000 BHT. I would think that 1000 BHT is more like the "informed rate", the rate expats and informed BM's pay. As has been mentioned before some BG's are lucky in that they often get (much) higher rates from perhaps newcomers or generally people who simply do not know the informed rates or people who simply want to be generous. It is like people buying fake Rolexes, I am frequently amazed at what people are willing to pay for them, they just don't know the prices people are willing to sell for. On the other side I doubt there are many rates that go far under 1000 BHT for LT. So that implies that average is probably higher than 1000 BHT.
As to inquire what is a fair rate, what is that going to prove? Is is still just an opinion right? If 98% of the people think that 1000 BHT LT is fair some may still disagree with that opinion. Some may think it is 2000 and others may think it is 500. Who cares? It is a personal decision and if the price is freely agreed upon I really do not understand what is there to make a fuss about. Why call those people names, try to ostracize them or even delete their postings?
In my opinion very few things in life are fair. I think it is rather inappropriate to use the term 'fair' when talking about paying someone to have sex with with. I think there is nothing fair about it, I am the guy with the money and the BG is there because she does not have many other choices. That does not mean she cannot have a good time, I have seen so many situations where the BG is enjoying it as much as I do or even more.
To me there are all kinds of good reasons not to negotiate a price. If you have to negotiate hard it kind of spoils it a bit already. Not making money an issue is often the way to be more relaxed with each other. I can imagine that I could do some hard negotiation for LT, say 500 BHT. But would the lady be happy? I can imagine that it would negatively impact her performance in bed and generally her attitude towards me.
Also another point, and perhaps some forget about that, is the level of attraction the lady has for the potential client. A twenty year old BG might just be more interested in going with a 20 to 25 year old guy than someone who is 50+. Would it be fair if she quotes the young guy a lot lower than the 50+ guy? I think it has nothing to do with fairness. You can negotiate but the BG ultimately sets the price, accept it or walk away.
But the point of the topic is basically does it make sense to "kick and name call" those who negotiate a lower rate, or to accuse those people of having low morals. That, I think, does not make any sense for it lacks a sense of relativism, one monger accusing another monger of having low morals.