Beats me. I write elf smut almost exclusively now and aside from being by far my most popular work, it's also the highest quality art I've ever produced. And people tell me so. They just don't tell me on Weasyl because the people here don't read. I think the reason most people hate erotica is 99% of it is written with one hand on the keyboard. It's usually sloppy, poorly thought-out, and with no regard for the reader in any terms other than getting them off. Which is why I like to separate erotica and outright porn. The latter is what usually comes to mind. The former requires characterization, plot arcs, style, and multiple chapters without fucking involved.