For that matter, do you ever READ fan-fiction??
No, I haven't and probably never will as I am no writer. But I'm not closing my doors either. Maybe when I'm old and sitting on a rickety rocking chair caressing a china cup of white tea, I will. Who knows... my muse just might poke me.
I have Sarah Gray's Wuthering Bites, and Seth Grahame-Smith's Pride, Prejudice and Zombies on my bookshelf right now. I bought them and never read them. At least not yet. Maybe when I'm old and sitting on a ....
Right after I finished writing my master's thesis, I devoured fan fiction for Harry Potter. There must have been too much remnant of scientific stuff in my life I felt so deprived of pop lit that much. Recently, I came across The Obituary of Charlotte Collins. It was an excellent travel back through time I almost forgot it was fiction.
Just a side note or in case you'd be interested: the Brontes wrote fan fiction themselves. How interesting is that!