This command can crash most servers by exceeding packet rate limit it can be put in a repeating always active command block to work similarily to a chunk ban but for the entire server /execute at @e as @e run tp @e @e[limit=1]

The crash exploit only works when there are a few entities so just use spawn eggs or commands to spawn mobs and then paste in the command to try and replicate it i found this bug with 3 players and a bunch of allays please help this is almost like /stop but there exist servers witch give you almost full OP acess but not full this can crash the server

 

only tested in 1.20.4.