It could be a reference to that social media warfare platform I saw a pic of a while back.
Pawns are effectively like and follow bots. Around 55% of the specified force.
Knights are chatbots. Designed to drive comment traffic. 15%
Bishops are meme/photo share stocks. They basically push memes, stocked statements, etc onto their timelines to be picked up by other pieces. 15%
Rooks are aged Smurf accounts with a managed history of activity and, possibly, friend relations. 15%
The remainder (around 1%) are queens. Real operatives with real accounts.
This analogue could be expanded to other concepts, but is very applicable to the social media front.