I agree with Judge Graber in this one. It's one thing for a judge to threaten a witness and intimidate him or her into not testifying. It's quite another to do what Judge Molloy (up in Montana) does here. Which I took as trying -- honestly and sincerely -- to protect and look out for the best interests of the witness.
The former's both wrong as well as legal error. The latter's not only proper, but an entirely nice thing to do.