Earlier quoted context omitted.
I think that's the point of the poster you're replying to. You examine the merits of someone's argument, not the fact they're one of the paypal founders. That is specifically the cult of personality referred to. Some people on this site seem to be desperate to fulfill the rituals they think will lead to success. Most of success is pure luck, combined with some preparation and ability to deliver.
"That is specifically the cult of personality referred to." But you are merely doing the same thing, except that you revere the author of the article more than the PayPal founder. Why should the article writer be more right than the PayPal founder?
Whereas "paypal founder" is an intended signal, that if you do what they suggest, you will have similar success as "paypal founder."