They are apparently placeholder names for characters' whose surnames players aren't supposed to know yet. Some, such as Derek and Rusty, are listed with their correct last names (Bailey and Burgmeister). The person who made up these names has to be particularly ignorant because…
I took a peek at the Carter Nelson page. When the article gets into his sexual history (presuming he’s fucked everyone the game permits him to thus far), it lists the HOTs… with different last names than the ones you’ve shown before. Camila is now Martinez instead of Diaz; Riona is now Adachi instead of Hale; Quinn is now Gray instead of Barnes; etc.
[Edit: Yeah, I just noticed somebody else just posted that. Shit moves fast around here.]
And Becky is Rose instead of Palmer. Hmmm; any relation to Madam Rose? No idea. Also no idea where the editor came up with these names. My guess: He’s one of those compulsive completists who got a bit nuts about how few names we fully know in this game, and took the initiative to temporarily plug in details where none exist.
Wanna make him nuts again? Go through his wiki and edit them out.
Incidentally, at my workplace we recently hired a few Afghans who have no last name, and that’s how they’re listed in our database: Anil NoLastName, Gul NoLastName, Zainab NoLastName, etc. (Don’t know why HR didn’t list them by their father’s name, same as Saudis and Icelanders, but whatever.) Give em all that as a name and see how long it takes before the bullshit last names reappear.