Any kind of feedback after package gets into updates repository
should
be denied, I can't think of a case where package moves to updates
repository and bodhi still allows to add comments/karma. Any feedback
after that can be either reported in bugzilla or to the package
maintainers directly. Its not like providing positive or negative
karma will make any changes to already pushed package to updates
repository.
I do have valid use cases. We've had examples of important packages having been pushed
stable too quickly and breaking some computers (think kernel, mesa). The bodhi comments
can then be used to provide a description of the problem, suggest any workarounds or
fixes, and also link to more information e.g. in the bugzilla or common bugs wiki, etc.
The Bodhi pages are easy to find (if I perform a system update and the computer breaks, I
look at what was included in the last update, and look at any bodhi feedback for those
packages), so it makes perfect sense to inform people there. It's much harder to
search bugzilla to find issues with a particular package.
So, the ability to comment post-push should remain. However, it would make sense to tweak
email notifications somewhat (so that everyone is not spammed with each new comment long
after the package is pushed stable). That's what I assume annoys people.