I think the difference between any other episode and 847, however, is that 847 was specifically researched upon and determined not to be re-aired, while the other episodes just didn't get to be re-aired because of the cycle they go through- and that's the main reason people rave about it. Because this was an episode unlike many others that was purposely not re-aired, that's really why people dub it to be banned, which may be an exaggerative word for the situation, but in a sense it's true.
This thread was started in 2016, when there was very little information about the episode and the basic knowledge and consensus was that the episode was banned for being too scary. Soon enough we began to unfold some more clues that cleared it up that this wasn't lost, destroyed, or taboo, but rather just an episode that was deemed unsuitable for children and therefore kept in the can. At this point, the informed majority of us do know that that is the case, and the main goal at this stage of the search is just to get the episode to show up, and I don't think we could blame anyone for that, because is it really too much to ask with all the work that's been but also has yet to be done?