There is a lot of literature devoted to FAA enforcement (see https://www.aopa.org/training-and-safety/pic-archive/faa-enforcement/faa-enforcement)
What is the threshold for revocation? The thing that specifically got me interested was a near collision runway video - assuming it wasn't an ATC/taxing instructions error, would this type of thing be sufficient? I'm also interested in what the appropriate penalty would be for that