I don't remember any casino lifting their wagering requirements if they are willing to accept they won't ever want to claim any bonus and rewards but there are casinos that don't have bonuses at all that even has wagering requirements and its inevitable due to the AML policies so these no claim bonus can help for someone who needs to have multiple accounts for privacy reasons.
And anyways, I believe bakasabo wasn't saying anything about any casino lifting their wager requirement.
As long or far as I understand, wager requirement is a criteria that comes with bonuses, as a way to prevent or keep gambler discouraged from abusing the bonus, but then, some casino still have a wager requirements on deposited funds, where as, the gambler is required to wager a certain amount of money he or she deposited before he or she can withdraw, this I believe some casinos do to prevent gamblers from using the casino as a means to launder money, I might be wrong though.