It feels to me that we need an enhancement to rebake, to be more careful
- rate limit on selected sites or perhaps on all sites
- inherit the original onebox if the refetch fails for any reason
In other words, I think we need a non-damaging rebake, at least as a selectable option.
(There will be some discourse communities who value an up to date 404, or who don’t value old posts at all, but there will also be communities which very much want to preserve old threads intact.)