For each player who wins loot, the wow  randomly assigns them a spec-appropriate item from that boss’s loot table. This subset contains only items that the game (meaning the designers in this case) thinks are appropriate for your class and current spec. Notice that you aren’t rolling Need or Greed. You don’t have an option to Pass. The game just says “Take this.†You can’t trade this item, or that would defeat the purpose of removing the social pressure on groups of strangers. If you don’t want the item, you are free to vendor, delete, or disenchant it.
The loot is not determined until the winners are determined. It’s all automatic, and you’re under no obligation to pass or roll — these choices no longer exist. The game decides who gets loot, not the players. The end. Nobody is going to be a callous jerk and take the item that you rightfully deserve. Nobody is going to try to talk you into trading an item to them because they are down on their luck and can’t ever win a weapon. No DPS dude is going to ninja the tanking shield that you need for your guild to progress.
We understand some players are interested in off-spec or transmogrification loot, and we will consider future changes to the system to accommodate those desires. However, we’re not sure fundamentally that Raid Finder is the best avenue for acquiring that loot. You would either need to take it from another player who actually desires it for their main spec, or a conversation would have to take place to make sure nobody else needed it more than you do. In other words, you would have to stop people from just rolling Need whenever they could. I’ve seen some suggestions that we allow an option for essentially “I’m happy to get loot beyond just what my main spec can use,†and maybe that’s the kind of approach we could take, but let’s make sure the basic design works first. For now, there are other avenues, such as dungeons, faction gear, normal raids or older content to provide off-spec or cosmetic gear. If you need any wow gold, please contact us!