@waterlogged That's completely false.
There has been a total of 220 unique winners this year (yourself included as you won AU back in January). It would not be unrealistic to say that the number of users who have entered the checklist to date in 2018 is much higher.
In addition, no user has won the checklist in more than two of the four months that the checklist has been held. There has been an incredibly small handful of people who have won more than two awards of AU, but they are in the extreme minority.