I have opted out of receiving credit card offers based on the lender running my score and then offering me a card. However, that doesn't stop groups you work with from sending you offers.
Both United and US Airways have been sending me card offers to link with my frequent flier accounts. Not only that, but they send an offer every time they mail me something anyway and they send me offers about once a week in the mail. I've had to call both of them and tell them to go away.