Just show your ID and you too can be 'anonymous'

from here (source article)

So the card will have a number. Sites will need to check that number to verify you're actually allowed to view porn. There will have to be a central registry of valid card numbers for sites to check against. Shop keepers will have to send that number to the central registry as part of the 'activation' process (much like pre-paid credit cards).

And how will you be paying for that today? With your in-no-way-anonymous payment card because that's how you buy everything because it's so convenient? I thought so. Have fun with your porny paper trail, pervert.