This is a repost from: News 2015-01-27.
Back in late October, Blizzard announced that they were banning player accounts that had been identified as having utilized one of the various third-party applications being used to automate gameplay. The duration of the ban for botting was three months, and that time period elapsed effective today.
Numerous types of botting programs exist, and have continued to be available. The significant ban wave last fall appeared to have decreased the number of accounts being run using bots, which had become an increasingly prevalent frustration for players on the ranked ladder.
Shortly after the bans were announced, Kripparian stated in an interview that he felt the existence of bots was interesting, and that their algorithms becoming more refined could actually pose some interesting possibilities for testing new decks or practicing ladder play against a more complex AI.
The ban wave was primarily being used to protect Blizzard's game economy, as well as to improve the ladder experience (particularly for players who were logging on to play late at night, where bots would be running and substantially fewer 'real' players would be online).
Blizzard's bot detection remains very accurate and quite aggressive, so the likelihood of a mass resurgence of piloted accounts is unlikely. Still, a lot of players whose collections were built using these bots could theoretically be re-entering the game's ecosystem today.
Have you seen many (any?) players obviously botting recently? Thoughts on the bans expiring? Let us know.