User blog comment:Kirkburn/Technical Update: September 10, 2013/@comment-452-20130912131219


 * Anonymous users were not always notified that a message had been left on their talk page.

Since this is bug I've reported in the past, I've tested this and it doesn't appear to have been fixed.

Steps to reproduce:
 * Find a wiki that has Message Wall and Welcomes enabled, and allows anon editing. (Or create a test wiki)
 * Edit anonymously.
 * View Special:Contributions/Wikia and wait for the welcome message
 * You can't just refresh your wall, or you wouldn't see the notification anyway.
 * This step sometimes takes hours, I suggest passively waiting, rather than refreshing constantly.
 * When the welcome message is posted, observe that you have received no notification.

edit:

And, I've noticed an additional problem, which you can see yourself by clicking Special:Contributions/Wikia and searching for "Welcome to Community Central! on Empty's wall".

I'm seeing 8 in the first 100, and more prior to that. It turns out that some users aren't receiving the welcome message at all.