When I filed a complaint with the supervisor at DFW I also followed it up with email to TSA, not only to "[email protected]" which was given to me by the supervisor, but also to "[email protected]" which I believe GradGirl posted here.

TSA-ContactCenter answered me today (17 days later). That would have been OK, except they send a form letter that only contained a canned reply (available on their web site) to one of my two complaints.

So, I tend to agree with you that TSA doesn't really want the complaints, and when they get them, they just try to brush them off as quickly as they can.