Now, as I have already written about, unlike DVD region coding, where pretty much all discs were/are coded, Blu-ray discs are not always so. Some studios, including Warner, Paramount and Universal have never released a Blu-ray with region coding. However, some studios frequently assert their capacity to do so, with none guiltier than Twentieth Century Fox. This is of course contrasted by the deceased HD-DVD format, which was completely devoid of region coding.
With this in mind, there really should be some rules set aside for the studios that do choose to use region coding, which I feel is anti-competitive by nature. Of course, for an evenhanded approach to this issue, one must understand the history behind the feature, and why studios wanted it.