It is absurdly exaggerated. People see ZLEGION or some other multiboxer in Eudama, running 30 chars, and they remember that but they don’t remember all the systems they passed through that had just a normal distribution of random players.
On my regular travels between Jita and Amarr and other systems, the multiboxers are by far the exception rather than the rule. The larger multiboxers such as ZLEGION and Kusion and some elements of Safety are pretty well known, and really they are most of the multiboxing in highsec.
But some people such as Usa Asmai would have you believe that every system is jam packed with 20 man multibox fleets ganking everyone or mining or hauling. Never mind that EVE is full of systems where you can mine to your heart’s content all day long and there is nobody else there !
The truth about EVE is not that systems are swarmed with multiboxers, but that most systems are actually empty or have just a handful of people in them.
Which Usa Asmai would know if he ever undocked !