This is a misunderstanding. The point of the quote is to get over imposter syndrome basically. It's about the fact that people actually perform better when they

This is a misunderstanding. The point of the quote is to get over imposter syndrome basically. It's about the fact that people actually perform better when they have some confidence. It's not actually used to suggest things like a quack acting as a doctor or anything truly dishonest. To be clear, the point in the article is still right: we actually will be less confident and have all sorts of problems when there's false pretenses. It is good to be honest and say things like "This is my first time doing this". We come across better and can actually be more confident without the pretense. "Fake it til you make it" in the end is as useful as "better to ask forgiveness than permission". Anyone just accepting this as good advice for whatever situation without other good judgment is a careless imbecile.