Here is the notification I just received:
App, is currently using the following deprecated features: Non-threaded comments. Please see the developer roadmap for more details about this change.
I looked all over the API and the developer roadmap and the settings but found no way to fix this issue. How do I fix this?
My hunch would be that they send out alerts based on the permissions your app uses - my app doesn't interact with any "comments" connections in the graph, but it does have the "publish_stream" and "manage_pages" permissions.
If someone knows otherwise please advise...