A Diablo 3 Community member has posted an open letter to Blizzard developers regarding what he feels is an issue with botting and its effect ladder-standings and other competitive activities.
It's the author's contention that those players using bots gain an unfair advantage in gear acquisition due to their ability to essentially play 24x7. Further, the writer states that Blizzard has not taken an aggressive enough stand against those who are using the bots. According to the letter, the last ban-wave was too long ago, resulting in a significant increase in the number of bot-users in Diablo 3.
It has come to a point where it is quite obvious that certain high profile streamers are botting off-stream and some are even admitting so themselves in public chat rooms. These players are viewed as examples by the community, so what kind of message does that send? To us, it sends the message that not only is it apparently legal to bot, but that the game even requires it to be competitive. That is undoubtedly not how you want Diablo III to be seen, especially with how far we’ve come since the issues of the original release.
You can read an entire discussion on Diablo 3 Community forum.