Sorry, that was a misunderstanding - I confused Map Issue with Road Condition Issue.
I was more refering to the issue Road Hazards are disappearing if not confirmed (thanked) by others. In a rarely used area like my town there is no way to make them more persistant.
Well, Road Hazard reports will disappear approximately between 15-30 minutes depending on if the report gets any "thanks" but Map Issues should not disappear, to view them you need to use www.waze.com/editor though and make sure you have Update Requests turned on in the map layers in the upper right. If they are closed, you should receive a notification that a map issue you reported was resolved or unfounded.
Conversely, in a rarely used area like yours, few people will be affected whether or not the road hazards persist. Unlike major commute corridors where thousands of people can be affected within a few minutes by a road hazard.
Re: Several Day Road issue vanishes