Because of the 302 redirecting link I asked Alexa to remove my site and 25 of my clients also--all in separate letters. They wrote back with the following:
If you're referring to the fact that we redirect before the site leaves Alexa.com, but still deliver the visitors to the site in question, it is our right to use redirects to track where people go on our site and that behavior will not be changed.
I don't now, nor have I EVER, seen any traffic from Aleza for any of my 25 clients so no great loss even if I am wrong in worrying about this redirect.
PS. they haven't removed the links and it's been about a week now.