There are lots of feature requests that end up in the "Diamond mods can handle it" and "It's not a problem yet, so let's not make a change until it is a problem" piles.
I suspect that these may need to be revisited now that the StackOverflow platform is being community-ized.
Early on Jeff and Joel held the belief (perhaps they still do) that a successful site needed to have strong leadership with an existing audience in the field of the site. It was easy enough for them to select diamond moderators in the field they knew a lot about. It appears that newly formed stackoverflow platform communities will not have this level of leadership - at best they will be formed by committee.
I expect when KnittingOverflow gets going, they may have some difficulty in selecting a good set of moderators, even with community input. Especially since the sites are not going to have a single person at the helm making the critical decisions. Perhaps moderators are expected to be generated out of the site proposal process, but I don't see how that's going to generate a good set of moderators. Perhaps StackOverflow, LLC will provide temporary moderators until there's enough community to select them, but the first few months of site moderation are critical in developing a site's DNA and community. This DNA can't simply consist of "Be nice" with generic moderators that have to deal with knitting on one site, pokemon on another, and pyrotechnics on a third site. It would be akin to trying to run a company with a "rent a CEO" and hoping the company will turn a profit. Someone needs to embody the community, and nudge it in the right direction in small ways as it develops so it doesn't become terrible.
This is a significantly deeper question than this post will go into, but as a first pass it may be time to revisit all those older feature requests with a critical eye geared towards the new direction and re-open some of those discussions. The more the sites take care of themselves, the better off everyone's going to be, especially when considering the newly developing communities.