In the specific case, this is a long running thing. Historically Wales has in fact dismissed Sanger as being a founder and presented himself as the sole founder. That’s why the interviewer poked at this immediately. It’s also why Wales got so annoyed, because he’s had probably this exact same conversation a million times and didn’t want to do it again.

If Bill Gates called himself “the founder” of Microsoft, people would probably dismiss it as a slip of the tongue. For Wales, I don’t think it was a slip of the tongue at all. It’s an intentional choice. I don’t agree with his interpretation, but I also don’t think he’s obligated to rehash the topic in every single interview.