Apple also uses Radar which is more effective than other bug trackers. You can file a bug with some product and someone from the other side of the campus will

Apple also uses Radar which is more effective than other bug trackers. You can file a bug with some product and someone from the other side of the campus will typically reply within days. I think part of it is a user interface issue, interacting with Jira is such an unpleasant affair that often only PMs in a company will interact with it in any depth.