You can’t trade with other players, or buy from them through their shops to take advantage of cheaper items. Drops from the kills of other players - including PvP won’t be applicable to you. As long as another player has attacked that monster you also tried to kill, you won’t get...
If you go right next to the lava on the side close to axe hut, you're just barely out of map range, but it is safer to go the long way around the portal. Avoid multi combat zones! If you are being chased in a non-multi zone, attack an NPC as this will stop the attacker ...