We also added a thing to 'collapse comments after reading' which I think I might turn of as a default setting soon. This is only usable for subscribers atm as well. But basically, as you navigate through a discussion, it collapses the comments you've read after you move on. This makes it really easy to navigate large discussions without having to scroll over 150 comments you've already read.
we're aware of a number of annoying bugs, but hopefully most of them will be squashed by Pudge for this weeks code refresh. If things are stable, we hope to roll this out for everyone rsn.
also my baby cut his first tooth yesterday. My furniture will never be ungnawed upon again.