[RetiredTexasVet]

Probably caused by people who are slow readers ... you know the type, move their lips as they sound out the words they are reading.

[relictele]

I think you just described (accurately) news talking heads!

[GreenAccord]

Reminds me of the joke/insult you could say about a mental opponent:

“They’re the kind of person, when they read, you can see their lips move.”

“Yeah, so?”

“At a Stop sign.”