i thought about why it would be difficult, not caring i wouldn't know crap about why, but i came up with something.
so you can't search for threads and comments, identify them individually as a thread and comment, this seems to be the difficult part:somehow apply hide to all threads and apply "a not hide"/function disabled/action deleted to threads with the exact words or phrase in the comment field?
so it might be hard to have the filter do something to one type of thing and have it not do to the same thing that has same basic something, but with something specific somewhere else?