This is a new message from steemcleaners (maybe a week old?) so this suggests that the website has been informed and has responded, I have no idea about each of the original authors.
I guess I can see your point about the Tyler Durdan avatar but from my perspective it's more to do with a way to protect the identities of the authors and less to do with identifying with the ethos of a fictional character. But I'm also just speculating here.