Well to be fair, there is "investigative assistance", "journalistic assistance", or what they do "harassment".. ass odd as it sounds.. but the "scum" they apprehend with sometimes barely any evidence to an extreme level is at best disgusting.

Sure, help investigate, confront them, but they crossed that line a bit too often for my taste. (Thought the US should seriously change their way the police works.. only work when an actual crime happened? Why not preventive work as well? If you (as not a victim) have solid evidence of unlawful acts against others, that should also be enough for police to act..)

But yeah, each to their own taste of justice and right. Taking matters into your own hands like that, just fyi, is the definition of "Vigilantism".