Yeah, I didn't think they were literally using Roman numerals to describe their user base; I thought they were using the "10M == 10,000, 10MM == 10,000,000" notation that is (for some reason) popular with financial-type people[1].

But anyway, I was wrong; I poked around on the site and they indicate they really do have millions of users. So: wow, nice work!

[1]: https://www.accountingcoach.com/blog/what-does-m-and-mm-stan...