The best part about that post was it shows he doesn't know what a force is, what a function is, how gravitation is calculated, ... It's the post that keeps on giving. I could spend an hour or two trying to edit that post for accuracy. It's like trying to edit a wise post into fluent English.
Weight is not in any way a function of acceleration. Weight is simply the attractive force exerted on a mass sitting on the surface of a large mass like a planet or moon. It is a function only of the mass of the object and of the planet or moon. It is not a function of acceleration. The measurement of gravity is done using acceleration. But saying the weight of something is a function of acceleration is like saying the distance between two places is a function the measuring method.
But this person feels the need to educate everyone around him. I don't understand.