Results should not be uploaded to the web by default

This is a bad idea. It's surprising, there's no advance warning, it's easy to miss that it is happening, and there's no way to delete results after the fact nor anywhere to send a takedown request. It's not even obvious how to disable it!

IMO anonymously uploaded results should be deleted, and new ones should be refused unless the user is indicated to have explicitly opted in. There is no way they can be considered intentionally submitted.