I'm certainly guilty of having used people's names as Sim names - never the whole thing though, just the first name or an interesting surname. Recently I wanted a few more silly names, so the last few Sims I've named have been "Instant Karma", Razor Blade" and "Sourdough Loaf".
I also have a massive spreadsheet with about 44k firstname / lastname combinations that I've used too. It's basically a list of first names and last names, and the spreadsheet just randomly picks one of each and uses the concatenate function to smoosh them together. It was based an an older name generator for fantasy characters. Example output below:
https://i.imgur.com/8B7fQsv.jpg