We had to make an adjustment on our site to account for that second one. I had just assumed if you have some kind of notice that can be closed, people would close it after they'd had a chance to digest the info (or decided they didn't care, or whatever). But no, turns out the vast majority never close anything unless it's physically preventing them from using the site. (Of course the vast majority also never bother to read anything that doesn't prevent what they're trying to do either, but we already knew that.)