Exactly this and I'm surprised that I had to scroll this far down to find this comment.

Extract this scenario out into meat space. Imagine if a town was running a bulletin board where anyone could post town news and a citizen posted a flyer talking about town crime statistics that were wrong. A town employee noticed and posted an addendum identified as being from the town right next to the flyer saying "actually the real data is X". Should town employees not be allowed to do that?