They seem insulting.
Now, there were football players named Rosey Grier and Fran Tarkington, and an old-time baseball player named Candy Cummings and one named Connie Cummings, but they all had formal names. Grier is Roosevelt, Fran is, I assume, Francis, and Mack was Cornelius (better Connie than Corny, I guess.) I don't know what Cummings was actually named, but my point is I think those kind of nns are dated at the very best and only really suited to sports figures.
We don't need to set the sky on fire. A little glow will do just fine.
Bob Ross