ArenaNet only does something if the person fails to respond, so with that in mind, they do it by using a macro to use their skills and a program to "call for help" when something happens. For the more casual ones, they simply have the game running in the background and use the skills when they happen to think about it / notice it. Back in the day, ArenaNet far more strict and would simply ban them on the spot, including anyone that happened to be next to them. This system is too easy to fool. Use a macro, watch a movie, do other things and just keep tabs on your chat window for a GM message to pop in, while not touching the keys once. This is why a blanket ban system must be adopted, stamp out what could get worse... which is getting worse. Look at the rise in actual bots, look at the rise in cheaters.If the people use multi box and don´t use macros is legal. Policy A player may own and operate several accounts, but they may do so only when they play and control each account independently of any other account. This means that: Each account must be attended at all times.Each account must be operated independently of each other.Accounts must not be operated simultaneously using macros or bots.One keystroke should translate to one action on one account.https://help.guildwars2.com/hc/en-us/articles/360013658134-Policy-Dual-or-Multi-Boxing