My “Recent inbox messages” on MSO (i.e. with the new top bar) includes the following item, dated 2013-11-25 20:41:53Z:
Welcome to Web Applications! Visit your user page to set your name and email.
This is a strange message — why tell me that when I've been using the site for a while (like many other Stack Exchange sites)? I presume it should be what appeared around that time in the “notifications” tap of the soon-ex-and-regretted multicollider:
The Web Applications Stack Exchange 2013 community moderator election is underway — nominations now being accepted.