Problem: On wikis that have Flagged Revisions enabled, new and inexperienced users who don't yet have achieved the required user status have to wait for an established editor to review and approve their edits to go live in the default version of an article. This can take many hours, days, or even weeks, and there is no easy way to find out about it (apart from keeping to reload the page or its revision history/logs, and knowing where to look).
Proposed solution: Create a new notice type in Notifications (for logged-in users) similar to the existing one for Thanks. There are already some design mockups and patches from past years by e.g. ProcrastinatingReader and Pginer-WMF at phab:T54510 (a ticket which has its priority set to "high" ever since Phabricator was set up over seven years ago, and is tagged "good first task" currently).
Who would benefit:
Directly: New and inexperienced users who are logged in, by receiving either positive reinforcement or guidance on how to avoid rejection of their edits. (It should be noted that rejections are very often combined with reverts, which already generate a notification by themselves currently. In other words, it appears likely that the new feature would increase the amount of positive feedback much more than the amount of negative feedback.)
Indirectly: all editors and readers, by integrating new contributors quicker, hopefully increasing the retention of productive newbies and encouraging them to contribute more, and aligning them better with community policies and quality standards via tighter feedback loops.
