There actually are quite a few people who find great value in Milepoint and who do not find the same in FlyerTalk. I can make this statement with clear authority because I spend lots of time on Milepoint and have read many thousands of posts there. I am NOT trying to say that Milepoint is better than FlyerTalk. That is totally a matter of opinion. It's a simple fact that each meets different needs for different people.
As Randy noted, there is no need to disparage one to boost the other. I find it far more useful to find value in both. They are rather different to me and I get different benefits from each. Personally I prefer Milepoint. Yet, I see value in both and I participate in both.