It takes people about a month to work through a language track, learn the language, and get on with their life. So I wouldn't
expect to have more than 45k MAU. 70k MAU is because people LIKE the site and come back to learn another language.
We're not trying to be some business that sucks people into using our site every day and monetise them. We're aiming to teach people effectively and efficiently and then get them moving on with their lives.
We could make the site less efficient, or change it's purpose, but that's not the mission of the organisation.