[quote=@Chiro]
What if the hunters aren't evil by themselves, but the supers they hunt are unlucky to have powers that are considered dangerous?

These powers could pose an inherent danger to the general populace (radiation manipulation, self-detonation, disease control), threat to national security (mind reading, teleportation, invisibility) or both.

Hunters on the other hand are lucky to possess powers that are considered "safe". Perhaps in this world supers are named after hazard level colors (green, blue, yellow, orange and red, from least to most dangerous).
[/quote]

Yeah that's pretty much how it would work out. However, I imagine some people with powers such as those are cooperative and agree to get trained or wear a collar that only lets them use their powers when permitted to go on a hunting mission, where they are always monitored. They couldn't have the hunters all have lame powers. Gotta fight fire with fire.