I'm of the understanding the only "things" left in GTAO that aren't meant to be there, are the RP exploits and ISO mods. As far as I know, DNS servers exploits, billion dollar bounties and the associated money sharing that goes with it have been server side patched.
Due to the ISO mods still being active after 1.08 (as far as I know), expect the god mode, shot through walls shit to continue until the next patch. Even then, I believe modders will find a way around it (1.09)
Tries to be 'tournament stealthy'. Gets (politely) reprimanded. Unlocks 200 Achievements. Finds out he only had to unlock 1. A big shoutout to my shadow soldiers. You know who you are!