Well here's a stab at a solution. Many of you play Warframe. By now some of you have had a run in with the Stalker. A dark Tenno NPC mini boss that hunts and kills you in retaliation for killing a main game boss. Now let's take that idea and flip it a little for Destiny. Take a "Target Event Minotaur" and ramp him up to an insane level like 37. Remove the guns and allow his melee strikes to remove an inventory item from the targeted player. Have it randomize on that player. So Mr. AFK has AFKed once too often in the crucible or a Strike. They recieve a notification on returning to the Tower. A black coin that fixes on their inventory. The targeted inventory is highlighted in black. Now everytime they head into a Patrol or a Strike, perhaps in the crucible they run the risk of a confrontation. Their screens goes dark like a public event is happening. The next words are " Your sins will be paid in full!" and now a insanely powerful Minotaur is dogging you on the map. Your Sparrow is locked. You can't escape to orbit. All you can do is yank the power cord. But that Enforcer is waiting for your return. And you never know when it's going to hit or where. Only until it has one hit killed you and taken your gear will it stop. Now Mr. AFK returns to the Tower to recieve a correspondence that is a bounty they must complete in order to return those taken items. That means so many wins in PVP going positive. So many strikes with so many assists and revives on your fellow player. You know actually having to play. Anyways I have to say the anxiety that the Stalker and Grustrag Three evoke is pretty impressive on Warframe. Because there is a underlying threat at any moment. Might be a good incentive and actually fun to have chasing you.