I don't know how they would do that.
There are some things that are broken on specific platforms: something that works just fine on PC but doesn't on Mac even, let alone between those and console. Sometimes things break because of a combination of packs that someone has.
The QA team at the moment doesn't have a connection to the sales front. What already is there is Answers HQ and the lovely folks there who are maintaining the known bugs list. So we already have a way to check if there are any major bugs in a pack before purchase.
The bugs are annoying (and at times game-breaking) but realistically, maintaining that sort of information doesn't seem viable due to the sheer variety of reasons for the bugs.
