So a while ago, I think for episode 3 or so, Taliesin was on Talks Machina and was asked about where Mollymauk’s name comes from. He talked about the film Lord Love A Duck where the main character is called Mollymauk, which was his inspiration. Then he added “And his last name is Tealeaf because I needed his initials to be-” which is when he got interrupted or sidetracked by something.
So “empty” as initials is not only definitely on purpose but has been planned ahead by Taliesin. Just saying.