Over the next two days, we will update World of Warcraft® to remove the integrated Twitter® posting feature. After this small update, the function to Tweet from in-game will no longer be available, and the settings which store your Twitter credentials will no longer appear.
This will not require any action by players.
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Good decision, I approve.
I never really understood the motivation for having it in the first place, and even less so after the giant douchebag became in charge of the company.
I assume it was good business to have it then, and good business to get rid of it now.