You had me going. For awhile there I thought you actually grasped some of the reasons why tanks choose to not do LFR. That is until you made this post. You really have no idea what you're talking about when it comes to being a tank. Either that or your view of the tanking role is clearly misguided.
Is this you? If so, I see a serious lack of raiding experience.
http://us.battle.net/wow/en/characte...ating/advanced