User blog comment:The Milkman/1.8 Title Update (English) Now Available on Xbox LIVE/@comment-174.101.11.24-20121120221905/@comment-3492791-20121121035446

More of a confused opinion. "Bug-free" just can't be done on the scale of a professinally made game. There is simply too much. But the point of having a QA department (which is mabye at most 20 people, NOT 100) is to find as many bugs before release as possible. After the game runs to an acceptable degree they will release it. After that your QA department numbers in the 100,000's and you release patches to fix any bugs the public finds.

Despite this you don't just excuse bugs becuase "QA is hhaaarrrdd". Some bugs are hard to find, such as "code" or "sequence" bugs, but other bugs are simply unacceptable because you know they did not make it through QA. Bioware with the Vanguard glitch was simply not aceptable.