I would be glad to give it a try. I've never done any proofreading/editing, except for my own satisfaction. But I do tend to get a little miffed with poor spelling and grammar. (Not picking on anyone here. Just my cross to bear.)

As for content, I try not to exclude any type of activity completely, though stories which are strictly male sub or TV/TS don't particularly interest me. But in the context of a larger plot, I can deal with that, too.