Questions to answer:
1. Which filters are used and how frequently?
# What combinations of filters are popular?
# How frequently are people filtering for namespace vs tag vs other?
# ~~How frequently do users click through to other review tools?~~
# ~~How frequently do users click through to help?~~
# How frequently do users click through to non-mainspace pages?
# ~~How frequently is live updates enabled?~~
@phuedx: This question can't be answered as there's no instrumentation for the button nor any distinguishing parameter sent to the backend indicating that the feature has been enabled.
# How many users have disabled javascript support? (Pending access to the table)
# How frequently to users change the `limit` and `days` parameters?
# How frequently are users interaction with the highlight colour feature?