I never had a problem with Dash ... got my 500 UA miles for sign-up, then a 500 mile bonus with my first purchase (and some miles for the purchase too of course) ... after which I uninstalled the software because it had a bad tendency of making IE crash unfortunately.

According to f**ckedcompany.com they are not accepting *new* members ... maybe they figure if they stop giving away sign-up bonuses and just keep existing customers they can make it ...