What I like about fitday is that we can track exactly what we are eating over time and then see if we are losing at that calorie rate. As for me (female 253lbs .. 5'3") I want to eat as many calories as I can and still lose weight. I don't want to train my body to function on super-low calories. I started at 1800 calories/day and began to lose weight.
I say, focus less on what "experts" tell us is the correct amout of calories and focus more on being precise in tracking our own input/output of calories and adjusting accordingly. I bought a super-precise digital food scale ($30 Target) and weigh things to the gram. I've lost 12-lbs in 6 weeks, a very healthy rate. I exercise 200-300 calories a day.