You stated:

>It is possible that he/she forgets about that edit and miss even the comment that sometimes are given with the rejection.

Unlikely, as the **next** time they submit an edit they will see a **warning** about the last reject:


> Kevin implemented this as described below. One rejected edit will
> produce the following warning:
> 
> ![Attention! Your last edit was rejected][1]
> 
> That links back to the last edit that was rejected. If the editor
> *never* gets any edits approved, they'll see this every time they go to edit, until they're banned. If *some* are approved but many are
> rejected (see details below), they'll get a more noticeable warning:
> 
> ![Warning! Some of your previous edits were rejected][2]
> 
> ...Which links to /users/current?tab=activity&sort=suggestions.
> <strike>We're not *currently* indicating whether these have been
> approved or rejected on that page.</strike> **UPDATE (December 10,
> 2014):** [We now show suggested edit outcomes on that page (pending,
> approved, or
> rejected)](http://meta.stackexchange.com/questions/122581/improving-how-suggested-edits-are-displayed-in-your-activity-history).
> 
> Finally, there's an in-between warning that'll appear for folks who
> get *most* of their edits approved but have a few declines (see below
> for details):
> 
> ![Attention! Some of your previous edits were rejected][3]
> 
> Again, this links to the viewer's suggested edit history, and should
> allow conscientious editors to find past edits even when their most
> recent edit was approved.

Source [Decision on rejected edits should be displayed as a notification to the editor](http://meta.stackexchange.com/questions/120624/decision-on-rejected-edits-should-be-displayed-as-a-notification-to-the-editor)


  [1]: https://i.sstatic.net/qbgMw.png
  [2]: https://i.sstatic.net/5Ccbz.png
  [3]: https://i.sstatic.net/uX69d.png