Looking at the sheer amount of detail that went into the world-building of the planes and princes of hell, it's not hardto see why those silly parents ended up going on a bit of a moral 'oh my word this promotes satanic worship' bend.
Collectively known as 'fiends', there's a whole lot of these hell-dwelling motherfuckers.
So in any given edition of Dungeons & Dragons, the 'D' page is always ginormously large, and that is solely due to the fact that 'Demons', 'Devils', 'Dragons' and, in earlier editions, 'Daemons' (renamed Yugoloths in later editions) will take up multiple pages all on their own.
