As could be seen in the desktop version of the article, the user is clearly notified about Content issues, if any, in an article. The mobile web also notified the user in a good way.
Screen shot of Desktop version of article
Screen shot of Mobile web version of article
The app doesn't seem to be notifying the user about Content issues in an article like the desktop/mobile web versions. It adds the Content issues options to the overflow menu, but the user wouldn't possibly notice it as it is hidden and couldn't be expected to view the overflow menu every time he reads an article (Though i have been using the appused the app for quite some time, I just recently noticed that it showed added the "Content issues" option to the menu when the article had issues).
It should be in a place in which the user could clearly identify it whenever before he starts reading an article.