I'm looking for a certain author

I remember reading about an author here on tvtropes that's well-known for his horror fiction or whatever dark fiction he writers. He apparently suffers from mental problems and stays in his house, if I have that correct. Ring any bells?

I believe you are looking for Thomas Ligotti.

This kind of question should probably be under You Know That Show though.

Ligotti is indeed a well-respected horror author with severe agoraphobia—and probably one of my favourite authors next to Angela Carter, in full disclosure—but I'm puzzled that you got the impression that he was well-known around here. He's not too obscure, but I don't see him come up a lot.

Thanks.