According to Blizzard in a new blog post WoTLK Gold, the procedure for attuning for being able to take part in the raids set to be added on September 15 not quick or simple. As was the case when the original Burning Crusade launched in 2007 it is an intricate process. In the beginning, players must obtain various keys to unlock various raids and dungeons, then they have to complete the dungeons or raids. After that, players must complete further dungeons that have more challenging difficulty. There are also lengthy quest chains that usually require up to five players to complete.

The whole process can take up to a dozen hours or more which is among the reasons Burning Crusade, as groundbreaking as it was in its time was, is now infamously associated with complicated attunement charts such as the one below.

Found an outdated TBC Raid Attunement Chart on my old laptop from wow

Having such a lengthy attunement journey not only served as a hurdle for players as well as an obstacle in the side of guilds looking to recruit new members in later stages to the games. Since many new or returning players weren't likely to have completed the attunement process buy WoTLK Gold and guilds looking to fill slots in their rosters would frequently take on members from other guilds.