Wow, that's quite a reaction. Often where you run into that is a redirect page is setup by the webmaster, for a variety of reasons, not generally for malicious reasons. If you click back twice quickly, you will go back two pages (to the TDR in your instance). If you try to do it slowly, the redirect will load and redirect you before you have a chance to go back the second page..... nothing to get bent out of shape over.
Did you try emailing the webmaster to explain that you were irritated by that feature and ask for a reason? If it actually is disabling the back button (not likely), maybe they have a glitch in their system, maybe they had a page designed that was mad at the company and decided to insert that for whatever reason..... who knows.
Not to pick a fight, but complaints and boycotts that don't give the other side a chance for explanation/apology falls on deaf ears with me.