During Round 2 of feedback, Jan raised the important point that most people don't know what "lightly active" means. Even with a more descriptive name, some of these categories might not make sense. We should add tool tips / popups that explain them better. Read the original feedback here: https://www.mediawiki.org/wiki/Topic:Tom5451z0qbw2qk4
From that, I also extrapolate that we should go over the site from the perspective of someone new to all the terms, and identify anything that's not obvious. We can then apply the same fix.
