Eating more to lose more

Reasonable calorie targets are easier to stick with and stay consistent with...that is typically why you see "eat more, lose more." The key to losing weight is consistency. It's the Tortoise and the Hare.

Get a calorie goal from MFP. Set your activity level based on non-exercise activity, pick a sensible weight loss rate. Something like 0.5% of current body weight per week would be reasonable, up to 1% is aggressive and probably not a great plan if less than 50 pounds to lose. Then, log any intentional exercise and eat those calories, too.

That 12 X goal weight thing is a "one size fits all" idea. Why would a bricklayer who carries heavy bricks all day need and trains for triathlons at night need the same calorie level as a librarian who sits at the desk answering questions all day and nights while watching TV in the evening, just because they have the same goal weight?

If I ate 12 X goal weight in pounds, I'd be losing much faster than anyone my current size has any business losing, if she values her health (and I'm not a bricklayer or a triathlete, either).

If you don't want to log exercise separately, get a calorie goal from a TDEE calculator such as https://www.sailrabbit.com/bmr/ , and plug that calorie goal into MFP (use the same 0.5-1% weight loss rate idea).

These methods are research-based, and take into account more things about your current size and lifestyle, than the "goal weight multiplier" methods, let alone picking a number out of the air. Losing at a sensibly moderate rate keeps energy up, makes it easier to stick to goal long enough to lose a meaningful amount of weight, and is more help in figuring out how one is going to need to eat long-term in order to stay at a healthy weight permanently.

Well, the thing is, you may not necessarily be eating more calories than WW to lose weight. It's just that your calorie allowance is higher with MFP.

The reason I say this is that a lot of times, people end up having issues losing weight on WW because of their uncounted "free foods" list. Those "free foods" are not calorie free, though, so if you were eating from that list, you may have been eating more than 1450 calories and not even realizing it. With regular calorie counting, though, you count everything so you are more aware of your true intake.