I mostly read everything "new" now, unless it has something in it I actively avoid reading. But when I first discovered the site, I went treasure hunting. Here's what I found:

GENDER CODES
There must be two letters before I usually am interested: M/f
There are different combinations, but I'm straight, and that's what I usually like. Now that I've discovered there are rare gems out there like "The First Night", I'm not as dismissive. F/f has little interest to me. I don't find lesbian sex all that tittling; I think of it as on par with male/female sex and I'm not invited. That last part screws it up for me.

SEXUAL ACTIVITES
Bestiality, exhibition, interracial, modification, pregnant, teen, toys, and voyeurism all hold my interest. Lactation, Pedophila, and watersports leave me cold. The "trans" and "snuff" I won;t exclude, because it might be part of a really good story, but if the description doesn't interest me, I'll ignore them.

FETISH
hair, slavery, bondage, and any combination of the letters BDSM.

THEME SETTING
s - l - o - w, thank you very much.

LEVEL OF CONSENT
pretty much anything here, although some torture kils tittilation for me.

CONTENT
I guess everything but Extreme.


As for the authors or the codes, I usually hold the codes more important-- authors can be diverse at times in their writing, so it pays to keep an open mind. There's nobody here whose writing I blacklist-- that's cutting off any chance of enjoying the evolution of the author's ideas, so why would I?