ARC's ranking leaderboard, everywhere it reveals this weirdness

Top1, traded 1.08 billion, fees 9.22 billion
How is that even possible??

Top9, traded 184 million, fees only 3.5U
This is a pure order-posting (maker) mode

And there's also Top 28, traded 37M, fees 0.446U....

With someone else's strategy like this, I ask you, how do you beat them in the grind
Why should you be able to grind past others???