As an avid reader of blogs, I've seen many stories about issues people have run into with other players in their random dungeon. I try to look at my play and make sure I'm not being 'that guy'.
Both my Hunter and Druid are skinners. I haven't had a skinner at max level before. I took skinning on both as a way to make money as I leveled them up. You kill a ton of beasts and it made sense to gather up some skins from them. My Skinning was maxxed very quickly on both toons. In fact, the Druid hit 450 skinning somewhere around Level 73 or 74. Skinning can also take the sting out of someone killing mobs you need for a quest.
Case in point, I was leveling on the Druid in Shaloazar Basin doing the 'Mastery' quest line. If you haven't done the quests, you have to kill 15 of certain types of mobs. When I got to the questing spot, I found these two Warriors working in tandem and clearing out the place. They were alternating Bladestorm cooldowns, with one 'tanking' and the other Bladestorming, then switching. I didn't have a prayer. But I was able to go around and skin all the mobs they were killing. To their credit, when they saw me, they left for another area, and as I finished skinning their kills the mobs started to respawn.
But I've run into a situation in a couple of Random Dungeon groups and I'm not sure what the best way to handle it is. Basically, the situation comes up when there are multiple skinners in the group. After the mobs die, it's a frantic quick click competition to see who can skin the mobs. Sometimes you'll even the skin, or Arctic fur, come up in your loot window only to see it awarded to the other skinner. This is especially important in the 'spider' instances like AN and OK which are a fantastic source of Nerubain Chitin.
Most of the time, I don't even know there is another skinner in the party until we've started the instance, and there isn't much time in the frantic pulling to discuss things. The easiest thing to do would be to inquire if there is another skinner in the party before we get going, but often times the run is started without much time to sort things out ahead of time. This is especially true when I run on the Druid who has to switch specs and gear right as he zones in. I dang near got kicked from a group because I questing as Feral but queued as DPS/Heals and got heals. The group freaked out when they saw I had 4k mana. I was able to get them to let me switch to my Resto Gear (11k mana) before they kicked me.
Then there is the issue of hanging back to actually skin the mobs. The rest of the party has gone on. It's less of a problem on my Hunter; he just does a little less DPS because he's spending time skinning. It's more of an issue on the Druid because by the time I’ve loaded the tank up with HoTs for the next pull, the other skinner has skinned all the mobs. If I hang back to have a quick click competition to actually get some skins, the Tank is at half health by the time I catch up to them.
I'm not sure what the best way to handle that is.
In a related issue, I've also had Rogues and Hunters get really upset when I need on a Blue for my Feral set. I quest, and solo, as Feral and group as DPS/Heals. I have yet to be assigned to DPS, and always get assigned to Heals. At the same time, I’ve had mages and warlocks upset when I win a spellpower item. I’m usually willing to defer to them on Cloth. It’s the only option they have and I would want a Paladin or Shaman to defer to me on Leather, so I should defer to Cloth wearers on Cloth. But rings, necks, and staves are fair game. Even at that, I usually defer if the item has it as I don’t currently have a Moonkin spec.
I get the impression sometimes that there are people who play WoW and to these people the other 4 members of their party are little more than AI companions there to defeat the dungeon with them and get THEM loot.