There has been a ban wave in Diablo III for the abuse of game mechanics using the Pandemonium seasonal buff in an unintended way. You can view the official forum post below!
Originally Posted by Nevalistis (Official Post)
It’s recently come to light that there is a method in which players can unfairly leverage the Seasonal buff, Pandemonium, in an unintended and unfair way to progress as a solo player. We wanted to let you know exactly what our stance is and what...