That is a really neat article!!
All my critters have names. And each name has a story of sorts behind it. I like the idea of a theme, but I also like to pick names that mean something personal to me as well as what suits that particular animal.
For example: Peaches was named after my father. My dad HATES snakes, but despite that, when I was growing up he always encouraged me to do what I loved and tolerated my doing it, lol. His nickname for me was Peaches. So I named my hypo boa Peaches in honor of him and it suits her personality too! ;)
But I also name my reptiles as a way of identifying them. They do have numbers, but I just can't call them by number..... :D