Not really. Stirner is an egoist while Goatis is a naturalist. Goatis throws most spooks out the window, and replaces them with his own spooks ("nature") whereas Stirner is more consistent in his adamant rejection of spooks in general.
Goatis can appear similar to people like Stirner and Nietzsche on surface but beneath all the apparent similarities, he is quite different in what he actually preaches. He rejects things like modern medicine, mainstream diets and social norms because he finds them out of sync with what humans are "naturally" meant to be. This in itself is a spook, a metaphysical crutch. Stirner isn't concerned with the "natural state" of man. He rightly sees that as just another binding metaphysical narrative which turns the individual into a slave of abstract constructs.