Yet I still have neutral karma, I don't go killing everyone but for example the guy with the bottle cap necklace, Nipton lottery winner, scavengers/prospectors, mercenaries I kill all those kind of people as im short on caps and ammo and I'm greedy. I've stolen everything of value wherever ive been and I mean EVERYTHING even foods as im playin HC mode. I keep getting caught though pick pocketing which is annoying.
I helped the gangers destroy Goodsprings, I helped them against NCR's attack at the correctional facility and I armed Archimedes that killed every NCR on site yet after all this my reputation with NCR is still only mixed.
I just assumed by now my character would be Very Evil but it's not.
I actually killed a couple of ghouls and turned Good! Why do you get good karma for killing ghouls anyway? Cos you get them out of their misery?

The thing I was surprised the most was with NCR, wonder how much more I can mess with them before they turn on me.

I've actually double crossed every faction one way or another and are all either neutral/liked or mixed, not one enemy.

Seems like you're playing how I always play.. Greedy and looking for any ways to survive!

I don't know, but good thing Karma doesn't play a big role in the game. The bad part is getting Factions to turn on you

Just wait.. You'll get bad Karma if you continue doing what you're doing

I mean I'm trying to be Evil lol I even killed someone because I liked their hat, guess I need to try harder, go have a talk with Caesar maybe