This is bullshit. There's only one thing a prop desk cares about when hiring a new trader: how much money did you make at your previous shop? This translates _extremely_ well on a CV. In fact, I can't think of anything better any prospective employer could ever hope to see on a CV. Thanks to the quantifiable nature of your performance, trading is one industry where you really can keep to yourself and don't need to build some kind of personal brand.

Of all the traders I know not a single one of them has a public web presence. Far from it. They are all extremely private and what they think and know they are not broadcasting on twitter.