I just noticed problem with cookies.
I set up that guests could dismiss notice and that it reappears after 1 day.
I dismissed notice 9.1 about 18:00 and now (11.1 1:35) I still don't see guest message. I'll wait for a day more, but if it don't reappear, that's a problem.
Also, could you change days to hours? It could be more practical and easier to test.
EDIT: I found where the problem is (using FireFox). At first cookies were set to expire after 20 days. I maybe (not sure, but most probably) dismissed notice with this setting still on. Later I changed it to one day.
Now I manually removed this setting from my cookies and after that it properly sets cookies to one day.
Could you set deafult settings to smallest available value (i.e. 1 day instead 20) so that those of us who want to use shorter periods could do this right away after mod's installation. Not a too big problem, but it's not too hard for you too.
And yes, I still would prefer if I could set it in hours.