For those of you who actually are interested in locking down your fics and being a socially responsible human being, there is software available. Perhaps if only one of you decides to put this in effect all of this stupid wank will be worth it.
Service Providers
http://adultchamber.com/avs.htm You can also register your site with some of the software companies that block and filter Web content for people. Registering your site is free, and it further reduces the likelihood that minors will see your smut. Yahoo has a good list of these companies. Is it really all that difficult? No, I think not.