Most complex software ships with a few bugs. Obviously, we want to avoid them, but the more complex a feature is, the harder it is to cover all the use-cases. As we get closer to our RC date, do we feel confident that what we're shipping has as few blocking bugs as possible? I would like to say we're close, but the truth is I have no idea. It feels like we'll have to keep trying the features for a bit until we don't run into anything - but we have less than 3 weeks before the RC ships. Here's a few surprising bugs that need to get fixed before I would feel comfortable shipping node12 in stable.

Personally, I think you are perhaps blowing up a fairly medium-sized (and fixable) bug discovered during routine testing into extreme-case hyperbole. Again, engagement and participation will get the bug fixed faster. The entire point of testing is to discover and fix precisely these kinds of pain points before release.