This is a child of T189724: 👩👧 Track how often blocked users attempt to edit
- Add tracking when the "you cannot edit because you are blocked" message appears in the VisualEditor/2017 wikitext editor and in the 2010 wikitext editor.
- The data should be made available in a Grafana graph, displayed hourly.
- The circumstances of how this data is logged is documented, including any known limitations.
- No personally identifyable information (username, IP, block ID, etc.) should be collected.