I am a snob, yes.
Erotica is difficult. I think many people do not acknowledge this. I only like to read erotica when it's done really well. I know my own stuff is not necessarily any better than that I am criticizing now, but I have the strangest conviction that it is. And it's okay for me to believe that I have talent in this one thing, and that I can judge others, so long as I don't impose my critical judgements on others.
Part of it is burnout. I have to read erotica to know my market, but there are some tropes I am just tired of. I don't always even read contributor copies in their entirety.
Sometimes I can handle reading fanfic erotica when I can't read mainstream. Well-written fanfic, anyway. Because I know it's not work, maybe. And because it isn't ashamed of what it is.