Summary (Score 1)

Here is a suggestion:

How about a summary at the top or bottom of the page telling you how many articles you are missing because you set your viewing level to +3. Maybe you could even tell it something like:

You missed X +2 articles.
You missed X +1 articles.
You missed X articles overall.

I don't know... just a thought. Because I would like to know if I'm missing out on a lot of articles than I can change my level.