Everyone in Arkansas is still watching their porn, from the pimply teenagers on up to the crotchety old politicians who came up with this shit.
It's all a political stunt so that the (significant) bloc of evangelical/social conservative voters in the state can feel like they got a win, and in turn they'll reelect the old white guys that signed it into law next fall.
Politicians get a win, evangelicals get a "win", and everybody keeps on watching exactly the same amount of Internet porn as they were before this law went into effect.