What happened in the Average online per day?

In 2012 when the Average registration per day was 65.39, there used to be an average of 363.34 online per day.
Then, in 2022 when the average registration per day increased by more than 400% making it 301.43 registration per day, the number of online per day decreased to 127.26

What really happened? Do people just register and not come online ?