Pinipmutant, I agree with the spirit of what you say, but the downside is that you can't legislate against stupidity.
For most people, porn is probably fantasy and they don't try to reenact what they see on-screen with their partners or items of household furniture. But a small majority may. It's the old argument used around the world whenever a psycho or serial killer is found to have a large porn stash: "Ban it! Ban it!" Problem is, how else is a psycho or serial killer going to get his jollies? Normal interaction with other members of the human race?
The porn is fantasy element comes into play when you watch 99.8 per cent of adult material produced right now. Aside from serious amateur stuff shot at home by couples, most of it features ridiculous positions that no one can get in to without serious gym time.
If you take a longer view and suggest that elements of porn are unacceptable, you end up in a huge argument about whether Vivid is okay and Rob Black should be in jail, and whether Gonzales will then pursue all the vanilla companies.
You can't legislate in favor of morons. If we did, there would be no cars, no guns, no pretzels... Unfortunately, at the same time, the morons are the ones who garner the publicity. We can't win.
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I also am subcribe to postal pornography - CAOH