But fandom has definitely nudged me along the love-and-hate axis with a few.

This definitely makes sense to me.

Hand on heart, I think fandom by and large writes him as at least a bit fluffier than he actually is, but his slightly fanon-y-fied version has really grown on me

Agreed! I still don't want to read fic focused on him, but I enjoy when he shows up!

novel!LWJ.... But a mix of fanonization, constant Frankencanon bleedover and fandom wank has made me really sour on him. I don't enjoy that, it makes my reading life harder, but I can't turn it off/around anymore. :/

YESSSSSSSSSSSSSS.