General

The exact definitions are a little fluid, but the basic idea is this:

Feedee: Someone who enjoys eating and the thought of gaining. This may or may not be sexual, although it is often tied to one's sexuality.

Foodee: Someone who enjoys good food, or a lot of food, with or without gaining. This enjoyment may or may not be sexual.

"Dominant feeders" isn't something that every feedee is into by a long shot, and likewise not every one of them is into being "made" to gain weight. That's an aspect of Dom/sub relationship added in to feederism which, while not uncommon, is separate from feederism itself.

I'd add that a foodee is someone who would rather eat what they want than be slim.

Which is something that's disproven by the fact that there's quite a few thin foodees.

Not really, some people can eat what they want and still stay slim, he means that while weight gain isnt a foodees intention, they would prefer to eat what they want and accidentally gain than restrict themselves for the sake of their figure.