It pops up all the time, it’s a waste of time and I’m sure it has been used countless of times to discard some piece of information. It doesn’t add up anything productive to the comments, people who comment don’t even say anything they actually think they just “did you know that MBFC says this so it has to be truth?” I could go on but I think you get the idea.
fwiw I would be in support of this. It’s normal for forums to have rules against low-quality discussion.