Would it be possible for Stack Exchange to reserve top bar announcements for things that are actually important to the network, and not use them to advertise things like the podcast? We've got the blog headlines showing up on the right anyway, so replicating one in the top bar isn't all that helpful, and I at least find it annoying.
At the least, please rig it so that once I close it on one site, I don't see it on every other site I visit.