Thread:RedstoneDemigod/@comment-30979292-20170711022317/@comment-28905095-20170711194510

On the other hand, there was a debate where I think it was concluded that if a page belongs to a subcategory then it also belongs to the parent category.

And the Dropper, Dispenser and Observer all do belong in Category:Appliances, and therefore defaults to belonging in Category:Tools. The Observer belongs to the Tools category due to its special ability of observing block updates.

So please don't change this, unless you're also interested in taking the full debate of how to use categories and sub-categories.

To me it's a bigger question why containers is a sub-category of Appliances which further indicates that Chests (in all variations) should also be in Tools...