Tanking is not always easy, mind you. But tanking can be an incredible amount of fun, and I hope that it'll make a real comeback in terms of popularity when Warlords of Draenor goes live. Right now, I feel like a few problems really keep tanking from being as universally popular as it could be.
- Difficult to get starting gear - For most people, it's hard to get started as a tank. Gearing is an issue, because some tanks (DKs, warriors and paladins) need specific tanking gear, while even the leather tanks still generally use different stats to some degree, different enchants, different weapons for tanking than DPS or (especially) healing. This is a problem the gearing changes in Warlords should really help with.
- Where can you learn it? - Tanking requires a different skill set from DPS or healing. While proving grounds exist, they don't really teach the most important part of being a tank - reacting to other players. It can be hard as a new tank to walk into a dungeon having never done it before. That leads into the third difficulty of picking up tanking.
- Dungeons don't provide any sort of experience right now - With the wildly disparate gear levels on people running random dungeons, you can have a tank in 450 gear trying to hold aggro off of players in 580 gear. While it can be nice to be the tank in 580 gear, even you might have trouble when groups don't cooperate, run ahead of you, pull mobs half way across the zone, and generally simply refuse to act like any kind of groups at all. This is something I'm hoping the gear squish and ten levels will do away with - we'll all basically be on the same page when Warlords dungeons are being run.