This doesn't seem right. March 2019 through July 2020 - that's only 17 months. Where is the 18 coming from?
I'll satisfy your OCD: Theymos started his
DT update log on March 5, 2019. Theymos made 17 posts in that topic, each with 2 categories: "Old" and "New". That means "Old" in his first post is a list of DT1-members from the month before March 5, 2019. And that brings the total to 18.
So it's "since February 2019" then? Because the "old" in that first post was from February 2019. Right? RIGHT??