I used to be @ambitiousslab@lemmy.ml. I also have the backup account @ambitiousslab@reddthat.com.
Mental Health @lemmy.world How to stop work anxiety impacting the rest of my life?
XMPP @slrpnk.net Upcoming changes to Let's Encrypt and how they affect operators
United Kingdom @feddit.uk 'It is jaw-dropping': Ian Hislop on Mandelson and Epstein
Buy it for Life @slrpnk.net Durable water bottle
OpenStreetMap community @lemmy.ml How to query the map offline, on Linux?

Zulip has a big jump, but worth pointing out that this is part of a wider trend, and other software has seen bigger jumps.
The export function doesn't include the legend, so the order from top to bottom by the final day of the graph is:
Thanks for introducing me to this tool. I hadn't come across it before and it's pretty nifty!