Is this even legal?

I was playing in sholasar basin and suddenly a ton of alliance player coming to me, attacking. i can not even click on single escape ability due to lag. it turn out a single user (suspectedly due to same name). here's the player : bonertrain
is this even legal?

https://i.ibb.co/kg2db09/Untitled.png

Yes, multiboxing is allowed as long as it's not more than 25 characters. The lag was probably caused by the amount of characters and totems around you.