of course he's still in a weird sort of limbo - he can't cut all his ties to the demon world because it is his world still.

That's true. And it's interesting that of all the demons who could have connected with, it's the relatively harmless Clem he becomes friends with.

Why isn't there more Harmony-appreciation in fandom?

Maybe because she's annoying? Maybe because she makes Spike look bad (both because she's the victim of his mistreatment, and also because she does good without chip or romantic obsession)? I don't know.

Thanks for the link. I don't think I've read that one before. I can't find where it mentions Warren, though.