Citation needed. But I don't suggest putting too much stock in what he says. For instance, he calls himself, as you call him, founder, yet by any reasonable measure he co-founded it with Larry Sanger. But neither holds much more than a historical role in Wikipedia now; Wales lost the elevated rights he had in the backlash to him mass-deleting images, and Sanger was banned quite recently after canvassing on twitter.
Citation needed. But I don't suggest putting too much stock in what he says. For instance, he calls himself, as you call him, founder, yet by any reasonable measure he co-founded it with Larry Sanger. But neither holds much more than a historical role in Wikipedia now; Wales lost the elevated rights he had in the backlash to him mass-deleting images, and Sanger was banned quite recently after canvassing on twitter.