@kenny
one final thought on this
the argument against naive reply bumping seems to boil down to "new users don't like it so it doesn't matter"
yes, it's counterintuitive to support a feed that new users don't care about when new users is the most important goal for Warpcast
however, Dan himself has said that the reason why new users bounce is because there's "not enough interesting content"
ok, so where does that content come from? well everything we know about social networks tells us that 1% of users create all the content en.m.wikipedia.org/wiki/1%25_rule
with this in mind, the conversation about new users shifts back to empowering power users to be as active as possible on here creating content and responding to + sharing other people's content
this is why it doesn't matter if "<1% of all users use the following feed"
if it helps power users create more content, it will benefit the entire network