The mountain pass troll encounter has always been a semi-popular spot for upper mid level players. Before the overworld became multiplayer only, a lot of people would do the encounter over and over. It's not anything amazing, but fighting trolls is fun and the loot is halfway decent, with a little bit of silver in the zone also. Now that the overworld is multiplayer only, this isn't really a thing anymore, at least not for more than 1 person/group at a time. On top of that, the encounter is needed for virtue gloves quests and opening the dodge blessing in Tenebris Harbor. The other day I wanted to open the blessing, but I was kind of out of luck because someone was already doing the encounter. My suggestion (assuming that multiplayer map is here to stay) is to give the trolls in the encounter a respawn timer similar to the respawn timer of the encounter. I don't think they respawn at all as it is now. This way people could just stay in the encounter if they want to kill trolls, and other people could still get the encounter.