I was playing on a Minecraft server when I flew across a large cube of enchanting tables. I then asked in chat why did people build them and one of the players told me that it was a lag machine and told me to destroy it. I did what he said but I was confused. How can enchanting tables lag the server and lower its TPS? When I was destroying it, there was no lag and the server TPS stayed at 20. There has also been a player who claimed that enchanting table cubes were used for chunk-banning players. However, when I was there with another player, none of us got chunk-banned. Can enchanting table cubes really lag the server and chunk-ban people? Thank you.
Server is on MC version 1.16.4.