That calculator must be wrong. I got my RMR measured (that's the energy I'll burn up just existing, not even moving or doing anything) at 2,300 and this suggests less than that as TDEE. Clearly my total energy expenditure is higher than my minimum expenditure, which is also reflected by the fact that I've been eating 2,300kcal and losing about .3lb/day for over 5 months, which adds up to about 3,100kcal.

this guy is losing weight by counting calories after saying counting calories doesn't work, good bait, I must admit.

I didn't say counting calories doesn't work :) Just that it's an accounting exercise that doesn't "cause" anything. I am taking account of my calories after I lose weight. Why wouldn't I?