While quality control isn't easy problem, it baffles my mind whenever I find a bug and it has been reported for years and still wasn't fixed in iphone/mac(or wo

While quality control isn't easy problem, it baffles my mind whenever I find a bug and it has been reported for years and still wasn't fixed in iphone/mac(or worse some user reported hack works). Those two are so big that spending a billion dollar for quality will make it back for sure.