bruh its not that deep
Looking at the site statistics, it's probably massively full of bots at the lower end.

Given 2400 bullet/blitz is 99.9% percentile but my otb rating is about 70% percentile, I would estimate that 99.7% of "players" on this site are bad bots filling up the lower ratings to make this site seem a lot bigger than it actually is.
The cat majority of players are low rated. If all the people playing online consistently played OTB rated chess you probably would be in the top percentage as well. Excluding FIDE where the lowest rating is 1400 so the vast majority of players wouldn't even register.
The site does not use bots in the player pools.
Given 2400 bullet/blitz is 99.9% percentile but my otb rating is about 70% percentile, I would estimate that 99.7% of "players" on this site are bad bots filling up the lower ratings to make this site seem a lot bigger than it actually is.