I'm on-board with that color of paint for the shed. (FWIW, I'm not actually opposed to -extensions either; worst-case we split that list later if needed.)
Right. Does it matter, really? People working on these things will be well enough connected to -hackers and the community.
Personally the only advantage I see to splitting it off -hackers is that it makes posts related to addins/forks/extensions/spoons/magic unicorn fairies/whatever more visible to that interest group.
