After beating the game, I loaded the save just prior to starting the ending quest.
I dismissed my party, changed into a lightweight suit of armor, grabbed my sniper rifle and a pile of AP ammo and went on a quest to destroy any concentration of any of the factions I knew about, just to see what would happen.
So, I killed everyone on the strip, everyone in the casinos, everyone in the major NCR camps, both major legion camps and the powder gangers. Rather than having my repuation slip to vilified with the people who liked me, it was instead set to wild child as they no longer had a clue how I was going to respond to them. Oddly enough, it didn't result in anyone trying to kill me that didn't already hate me.
I dismissed my party, changed into a lightweight suit of armor, grabbed my sniper rifle and a pile of AP ammo and went on a quest to destroy any concentration of any of the factions I knew about, just to see what would happen.
So, I killed everyone on the strip, everyone in the casinos, everyone in the major NCR camps, both major legion camps and the powder gangers. Rather than having my repuation slip to vilified with the people who liked me, it was instead set to wild child as they no longer had a clue how I was going to respond to them. Oddly enough, it didn't result in anyone trying to kill me that didn't already hate me.