It would be handy if WME was more detailed in all the error messages.

Like it could at least take you to them so you can see what the issue is and also allow you to easily remove those edits causing the error if you don't have the permissions to make it or someone else has edited the element before you got to it.

The warning notifications haven't really been touched since I started editing and a lot of the time they're not as helpful.

User lukewsaunders even mentioned "for a beginning editor the warnings aren't very helpful and are too wordy, half the time the area it highlights isn't even the bit that's actually causing a problem".