To solve this I created osm-qa-feeds, which allows to create personalized regional feeds for the various quality assurance tools out there. Here are the few simple steps of how to use it:
Step 1: Search your region
Step 2: Adjust the bounding box
Step 3: Done. You can now use one or more of the personalized feeds in your favourite feed-reader.
PS: If you know another QA tool that provides feeds and that should be added to the list: Head over to the source code on github (pull requests are welcome) or leave a comment here.