I don't know if these will really work. What remains is, in order to use the system to draw attention to them for the brief amount of time that they'd be relevant, folks would have to:
- Post the information here on meta
- Ask that the post be featured so it shows up in the bulletin
- Alarm quite a few people where the recall probably doesn't apply
That just gets rather wonky.
At that point, the notices would need to be cleaned up, and that's not even mentioning whatever convention we'd come up with to determine which ones were important enough to show.
That said, if a major recall happened, as in Purina realized that it accidentally put LSD in all of its food distributed to every major vendor in the world - there would surely be a bunch of more on-topic questions about it that also drew attention to the recall and circumstances around it.
When Pets gets through the public beta period (a while down the road, but worth mentioning), it'll also have a blog if enough folks in the community want to write for it. The blog would be a much more appropriate venue for this sort of thing. Our chat room is also pretty active, so there's that as well.
Don't not ask a question about a recall if it retains value after the recall has ended, and applies to a relatively broad demographic - but I don't think there's going to be too many instances of that.