Bragging about being smarter is a standing invitation to receive passive aggressive behavior from others. People will unfairly try to find flaws, and who can blame them? They're acting innately better than their peers - while at the same time not being wise enough to be humble / modest.
I also worry it ends up having a person with potential ending up hiding behind a cryptic / abstract facade, afraid of failing when not being an instant prodigy at a new skill. Don't we will have to work our way up and build a track record of some sort?
What does being intelligent mean anyway?
Ultimately, if someone wanted to be recognized as smart, wouldn't at least some "normal IQ people?" have to understand and appreciate the value of something they synthesized/made?