Have to try a few of the described techniques. I agree with the writer. Since we have been brought up by a generation that thinks self-promotion is crass, we are sometimes at a disadvantage.
I would add, however, that our generation seems to know how to use the word and can easily overcome this deficit. Also, having a professional and artistic value, words can be interpreted by like-minded others who will discern the “pure” self-promotion from the desire to share scholarly and research interests.