They do. We have had and currently have whales on the blacklist.
Your mother's account isn't "low effort content", it was copy/paste. And yes, if anyone is caught doing that they will be added to the list. We don't actually deal with low effort content and we won't because not all people have the same capability of writing expansive essays.
That's ironic because it was described as low effort abuse in your Discord when I questioned about it. If it's that it's copy/paste does it not matter that she references the verse it si contained in and often gives a very brief personal detail on the post?