When creating some Chat event on my site, I usually go to the Chat Room's info and there I schedule my event.
But, if I want the users to notice that, I also need to add it in the Community Bulletin. Manually.
There are some differences in the two tools:
The Schedule Chat Event has a Description, a Date and a Duration. The Community Bulletin is more or less the same, but as an addendum, we can set an URL, usually pointing to the Meta question that concerns that announcement on the Bulletin; and we can also decide when the announcement will be on the bulletin, deciding the start and end date.
Like I said, all of this is currently done manually. I honestly think that this double task could be one (given the technical aspect won't be a problem). My feature-request is to automatically add the event in the Community Bulletin.
I'm not sure if this is easy to add to the current tools, but although it's not a "fatal" error/bug, it would simplify the setting of new events.