"The borough also says visitors encounter its "Play Smart Rules" when entering the park, including a specific instruction: "Do not twist chains.""
So the town buys crappy swings, knowing full well that kids are going to spin them (who hasn't done this a million times as a kid?) Then they slap up a sign telling the kids not to do that. Basically entrapment.
Here's an idea for them: maybe the town shouldn't cheap out on unsafe equipment for children...