With the throttling, it used to be we'd drop a movie in the mail one day (say monday) and they'd get it Tuesday (because the netflix center is a town away). They'd drop a new one in the mail tuesday, and I would get it wednesday. For a few months, I got into this throttling state where I would drop the movie in the mail monday, they would get it tuesday, but they wouldn't mail the next one until wednesday and I would get it thursday.
When I emailed them, they pointed out the lines in their TOS that they were allowed to throttle, and after doing some research I found a class action lawsuit against netflix for this (although it's over now).
After a few months I guess they took me off and we haven't had problems with it since.