Doctor Who episodes are all both soul-destroyingly terrifying and full of some of the funniest lines in the series: he's harvesting both laughter and screams.
Steven Moffat used River Song to extend the Doctor's lifespan.When River saved The Doctor's life in "Let's Kill Hitler," Amy said it used up her remaining regenerations. River only seemed to use about three (Girl in New York -> Mels -> River), so that leaves 9 or 10 more that she gave to the Doctor. That could extend the Doctor's lifespan past the 13 regenerations rule, thereby extending the show through 10 or 11 more actors. Considering River is quickly becoming Moffat's pet character, it wouldn't be surprising for him to have her do something major like that.
Steven Moffat Feeds on fearSelf explanatory really.
Moffat is Parallax.It's why he feeds on fear. Thankfully, he's a benevolent version of Parallax. Of course, Moff still needs the potent fear of children. Without it, he will get hungry. No doubt leading to the universe becoming one big den of Nightmare Fuel.
Steven Moffat is a troper.It has to be!
Steven Moffat doesn't just feed on fearHe also feeds on confusion. He made Timey Wimey ball for a reason: fear is his breakfast confusion is his dinner time.
Steven Moffat hates AmericaJekyll has many TakeThats towards America for no apparent reason. And the episodes of Sherlock that he wrote either make Americans out to be very stupid (the one in the cab from A Study in Pink) or have them be very inept and idiotic decoy antagonists such as the ones in A Scandal in Belgravia.
Out of all parts of the fandom Moffat trolls, he likes to troll shippers the most.Think about it with the Doctor's relationship with the Ponds. Without adding spoilers, its less a love triangle and more love tetrahedron with three sides and five vertices. One wonders if Moffat has some sort of sick enjoyment from the mass shipping war.
All of Steven's new episodes are from his old fan fictions as a childAnd now that he's head writer he has the chance to make everything he ever wanted canon.
Steven Moffat is a Time Lord.Which is why he's such a big fan of Who.