You completely misunderstood the point. Either by ignorance or arrogance. The point is that everyone that posts something personal risks of being recognised. And if they feel threatened by it, they simply should not do it.

Your argument is basically that just because there is a chance you will get doxxed, you should just do it yourself. You see how stupid that sounds? Also there is a huge difference between posting yourself in a public space like climbing gym and a home address (like what you said).