Where Did All the Non-Porn Free e-Books Go?

I have a complaint today.  It is about free e-books.  I shouldn't complain about something that is free, right?  Well, I am.  I love the access to the classics and I WAS loving checking out new authors from a variety of genres. Until "the-book-that-shall-not-be-named" came out.  Now it's all varieties of porn.  Soft porn, borderline porn, bondage porn.  I don't want to knock it, but it is not my choice of reading material.  Is there really such a demand for this style of writing? Maybe readers were embarrassed to read this genre before the e-reader boom and now they are thankful for the fact that they can enjoy these reads anonymously?  Or are authors thinking they will be discovered by riding the coat-tails of this phenomenon?  If the latter is true, let me please beg these authors to reconsider and branch out.  For further motivation, check out how these Kindle singles authors are doing.