Droppers/ Dispensers

I've been pondering this for a while, but have reached the point to where its become an issue. Droppers/Dispensers are not allowed to be placed in cells. I have no valid idea as to why this is a thing, or why it has not been resolved by now. With the cell size already having such a tedious height, not being able to place droppers/ dispensers is rather annoying and unjust. As a constant donor/player on the server I would appreciate if something was done about this.