I think there would be some newer low-level users that might be interested in doing this again this year, like Level 21 before 2021!
As of today, 16th July, 2021, there are 168 days left until the final day of this year (31st December, 2021), and since 168 days divided by 8 days/level is 21 levels, it’s not too late to get started!
I hereby grant the moderators permission to transfer this thread to anyone else that wants to maintain it, and/or to make this post a wikipost to add a leaderboard.