World of Warcraft update lets you reports cheats/bugs in-game

World of Warcraft patch 4.3.4 will alter the way the interact with the Customer Support elements, letting you report players and bugs through the game client.
According to Blizzard, the update will let you automatically gather all the info you need to report cheating, harassment and “naming violations”. 
There will also be an option to submit suggestions to the development team.
All of the above will be carried out through a new ‘Customer Support window’.
Source: Battle.net