I like necrophilia for the same reason I like time stopping fantasies, having full control of a body that once belonged to a girl and being alone while doing so (I'm shy).
I occasionally check sad panda's necrophilia tag for new works. There are sadly only like 1500 galleries anyways. We have necrophilia threads on /g/ too. Sometimes there are obscure Chinese artists whose work is hard to find
I fap to all corpses from fresh ones to maggot ridden ones, but I don't know if I would be able to have sex with a rotting corpse IRL given chance.

Complete control is what I like about it too as they can't reject you and have to let you do stuff to them. I also like being able to mimic their voices to make it sound like they enjoy me doing stuff to them.

Like how everyone says, control, knowing that they can't do anything about their body being use in such a crude way by someone else, they'll fade into dust, others might live whit the curse of knowing but you don't have to live whit that, your victim is no different than a living -or well dead- sex doll, or that's at least how I see it, they really only serve one purpose and that is to give pleasure to one.
I find it hotter when the person having sex with the corpse is the same person who killed them. It's a bit of a personal thing since I know a lot of people prefer the fantasy of going into a morgue or centenary, but seeing their face of horror while their life spills away would be truly the best.
But like most people, these are just fantasies, nothing more, nothing less.

I'm a bit different, I like decomposition. I like the aspect of a beautiful, high class woman losing everything, her entire identity and beauty being destroyed as she gradually turns into the most horrible, disgusting pile of filth and rancid fluids while being eaten by maggots.

if i was to in real life (obviously, i wouldn't be shagging a rotten corpse, freshly dead) i could do anything and not hurt the feelings of the corpse LOL

there's something so satisfying to me about having power over someone, and being able to take their life away. make their body go cold.. so you can watch them rot... or fuck them