I've spent days reading through some of the threads. As a result of your recommendations, the length of my reading list now exceeds my likely lifespan. Bliss.
After a childhood and teenage years spent reading all kinds of horror and fantasy (I never really liked science fiction, despite my eventual career path) , I moved away from fiction in general and horror in particular but, over the last couple of years, I've come back with a vengeance.
My Kindle is now stuffed full of out-of-copyright horror and weird fiction but you can't beat the experience of reading a dead tree book. The pile by my bedside is now tall enough that I can see some creepy spine illustrations staring back at me in the middle of the night.
I love haunted house stories (and, of course, I'm writing one myself), occult tales, Lovecraft, Cottam, Barker, Leiber, Aycliffe, Nevill, Straub, Herbert, Fowler, Lumley,.... The list goes on.