I've watched every episode. Back when people would host streams of it on /b/, and shit. It would be like 20 /b/tards all watching To Catch a Predator together. Really comfy days. Back when noko was still a thing.
Anyway, if you've seen every episode like me, and a lot of other oldfags have you would realize there were a few people on that show that def didn't deserve what they god. They were literally catfished. There's one that stood out particularly as a man that would have adored ANY female attention period. Doesn't matter if the girl was 12, or 65. The man obviously just wanted some female attention, and some one to talk to him.
The people on that show fucked his life up because he was gullible, and lonely.
That's just one example too. There were a good handful of them that were just sad cases, and had no business being called a predator.
People like watching bad things happen to social outcasts though. So it made good T.V