Why is this getting downvoted? That's exactly what Sabu was doing.

He and this FBI guy would approach random kids on IRC in order to entice them to join "his" prestigious hacker group. They weren't going after existing criminals, but going out of their way to create new ones. Largely underage children.

Indeed. And it's worth it to note that Sabu isn't a creep merely because he snitched to save his own ass.

Sabu worked hard to entrap more and more people, largely underage children, and had a lot of fun doing so.

This isn't a guy who simply made a deal to save his own ass and felt bad about it. Sabu never apologized, but rather proceeded to attack the people he'd entrapped.