I am having trouble parsing your comment. Could you elaborate? "no other method" of what?
Also, who is advising people to ignore changing what they are...? And why is advising people to change what they do bad advice?
Please do clarify, as at this point I am not sure whether, and on what, we are disagreeing.
If "what you are" is the only/most effective way to change "what you do" (eg unconscious signalling) then the advice of the original article to focus on "what you do" is poor advice, even if it is technically correct that only what you do matters.
Happy New Year! Here's the latest and greatest installment of rationality quotes. Remember: