Johnson explained that Blizzard has created achievements for things like completing dungeons and killing the last bosses in each dungeon, for exploring all areas of the game's map, for completing quests, and even for doing things like cooking and fishing that players often did in their downtime.

"Level 70 (players) were chain-running low-level dungeons to get every one," said Johnson, referring to players who were completing easy dungeons in order to get the achievements.

Other players agreed, explaining that many people are trying to finish off as many lower-level instances, or challenges, as possible before the level 71 through 80 areas open up in Lich King.

"Achievements are a big deal," said Mike Schramm, an editor of the popular blog, WoW Insider. "So most people are just busy trying to catch up on those--doing the same old stuff, but getting achievement credit for it. Once the expansion drops, we'll all be up in Northrend, and no one will be going to the old (Burning Crusade) instances. So everyone is trying to run the BC instances as much as possible...to finish them up before the crowd moves on. When everyone's at level 80 and you need to run a level 70 instance, you'll be out of luck."

we offer cheap wow level guide.