On http://www.mediawiki.org/ we are reminded we have new messages upon login.
We can read them at http://www.mediawiki.org/wiki/Special:NewMessages .
However there is not a sliver of hint how they are generated.
There should be a note on that page that they are somehow related to one's watchlist, if indeed that is the case.
Currently we see a
History Move Watch Summarize
on top of each message.
If they were really on our watchlist, they would say "Unwatch" there.
And all we are given is the choice to 'mark as read', but no 'unsubscribe'.
Version: unspecified
Severity: enhancement
URL: http://www.mediawiki.org/wiki/Special:NewMessages