Canada

At least the effort diminishes over time. There are a lot fewer mainstream journalists than articles.

I would like to see more non-profit effort into making this information plainer and more accessible, in a way that has wide reach yet doesn't depend on media cooperation. Heavily promoted robust (and free) browser extensions, for example, that can parse out publication and author and will automatically show terse bios, or autogenerate (or select from a comprehensive bio) author/publication background information relevant to the specific article. The signal-to-noise ratio has to be super high so a tiny amount of additional information is highly informative and also pervasive.

Tools like Ground News or the 3rd-party publication rating systems don't go nearly far enough and don't have enough reach nor reduce user effort enough.

Facts in and of themselves aren't biased. Bias is introduced when you consider which facts get broadcast, and which don't. The context in which facts are stated also adds bias. I think that bias is fundamentally inherent to humanity.

You're probably right about people ignoring bias markers, but I was thinking more "incorporating your bias consciously, rather than subconsciously, throughout the article" instead of a bio or blurb at the top.