Being bullied by people in power can be really hard to deal with. It makes sense you wanted justice.
I did something afterwards like robin hood, and they got their butt handed to them. I'm tired of being bullied. There is this thing called fearlessness that takes over at times.
Fearlessness is not a symptom of PTSD. It is a symptom of a couple of other mental health conditions. Dissociation and anger are symptoms of PTSD, but you describe fearlessness a lack of regard for consequences and harm to others. The sooner you can get help for this, the better.
You also describe what appears like the active and willful intent to perpetrate harm against others. Perpetrators of "street justice" usually commit violent and criminal actions. It's unclear what exactly you mean by street justice, but typically, crime and violence is not a symptom of PTSD.
I wish that those same private investigators realize that they are at some fault of my street justice that left them looking foolish.,,,,But it feel better because it make them look like the bad guy. I guess some things happen for a reason.
They probably have no idea you believe your actions are their fault. Unless you were a known suspect in a crime, no one probably knows you were even associated with it.
Street justice tends to lead people who are already assholes into becoming even bigger assholes. People generally don't think, "oh someone committed a crime against me. This must be street justice. This street justice has motivated me to go out and stop being a horrible person to other people all of a sudden." That doesn't really happen. If they are jerks already, street justice motivates people to get revenge or dump on someone else.
So no, you probably did not encourage them to change their lives around and become better people.
You possibly did a good job of allowing them to now be able to play the victim card. You did give them that. If that is what you wanted them to do, then congrats. They can now claim they were victims of crime/"street justice" and that garners sympathy in many circles.
I feel like sharing this because most of you know you have
PTSD for some time, better to get a lawyer, then what I did.
I agree that if someone feels like they want justice, getting a lawyer is a lot better of an option than becoming a perpetrator. Street justice only perpetuates the cycle of abuse and violence and general assholery. Legal justice is a mixed thing, but it sometimes leads to restorative justice and changes in behavior.