If someone doesn't believe in BFL, that's fine. They should follow what they believe will lead them to what they want. The question is why there are here!

There are people who lost weight without exercise, there are people who lost weight with a gastric bypass, etc., etc.

It has no sense whatsoever to be on a program you don't believe in, mix and match between several programs you have no respect for, and join a group of people following a program to tell them they are wrong.