"So they coordinate different police forces to arrest everybody on the same date whereas before each police force would carry out the arrest when it suited them most. It makes sense that arresting +600 people will get more media attention than 5 arrests."

Since a "ring" is however many people you arrest in an operation it makes sense to try to get more people using the same software ( and therefore part of the same "ring." )

Finding 5 KP-sharing rings of 5 people each sounds less interesting than one ring of 25.

Dante