The tactic has been used to convict people in various states already. Since authorities use IP addresses to track clicks, defendants have argued that neighbors (or anybody!) could have tried to access the nonexistent illegal smut.
After clicking on one of these links, a PhD student had his door kicked in, and he was thrown to the floor and handcuffed by FBI agents. He's now facing charges.
Attempts to download child porn are punishable by 10 years in prison. Do you think this is a good way to catch these predators?