A way to look at it would be a historical analysis comparing a sub-set of the posting habits of a set of FTers who were comparably active on FT and MP for a set period of time (or type of period of time). I am not about to have that attempted, but I do know that some people on both boards indeed did use the "like" feature on MP instead of choosing to type a response using any characters/words. That dynamic doesn't help further a discussion; although for those obsessed about getting credit for being "helpful" or "liked" by some clique or another, or for those frustrated over the "signal to noise" dynamic, perhaps that short-circuiting of discussion doesn't necessarily get perceived as a negative in the aggregate and is seen as a positive. I just don't see it working as a positive for me when I'm interested in getting and providing further information and enjoy the discussion dynamics on FT as they have existed for years.
I give most adults credit enough to be able to make judgments for themselves about what they encounter without needing these kind of post or member reputation scoring crutches that substitute for (or undermine) independent thinking and don't further what I perceive to be constructive and/or entertaining discussion about miles and points and the stuff we encounter when traveling.