Yay! I combined Mars Edit, AppleScript, Keyboard Maestro and BBEdit to establish that yes, indeed, I posted at least once per day during 2020. For some reason my script failed to count 3 separate days (timing issue?) but I was easily able to verify those 3. 🙌🏼

Congrats! I have a daily repeating reminder to make sure I don't miss a day. I've posted every day since the first of January 2018.