I began following my NV characters reputation changes around level 19, and I sort of regret not keeping track of it sooner.
I've looked through my saves and compiled an incomplete list in ascending order:

Level 6; Adventurer
Level 7; Vagabond of the Wastes
Level 8; Mercenary
Level 13; Mojave Legend
Level 14; Pinnacle of Survival
Level 16; Strider of the Wastes
Level 18; Wasteland Watcher
Level 19; Evil Incarnate
Level 20; Renegade of the Wastes
Level 22; Profiteer
Level 23; Egocentric
Level 24; Loner
Level 25; Hero for Hire
Level 26; Model of Apathy
Level 27; Person of Refinement
Level 28; Moneygrubber

I earned Evil Incarnate by robbing the Silver Rush of all its items.
Got any interesting reputation statuses?

I'm impressed at 'model of apathy'...I thought only my supervisor at work awarded that......

There are some interesting ones with factions. I think you can get different labels for rep, depending what type of faction it is. (main faction or side faction)

I think I earned that one by consistently helping every faction while simultaneously robbing them blind.

I really would like to see some other players interesting reputation changes or what-not.

Perhaps getting the best reputation possible is actually no small task

I have Desert Avenger right now, I'm level 11 I think. Haven't played since yesterday. Very good karma.

I finally got 'liked' by Freeside...only killed one dude to do that, and he drew first, lol....

Worst part is, my 'beer change' thugs seem to have disappeared....