Yes, but as noted in the post, if the pull request author misses that email notification the request goes into a purgatory. And the pull request page has not wa

Yes, but as noted in the post, if the pull request author misses that email notification the request goes into a purgatory. And the pull request page has not way to glance down a list and note who's on what. This isn't an individual notification system, it's an easily-scanned list of PR states, which has quite a bit of value for many projects.