Update#2: Permanent Banning now by Blizzard. Source: us.battle.net News article
Update#1: There are still bots in the game according to this Reddit thread...
Source: us.battle.net News article
The offenders will be banned temporary till 2015 and subsequent offenders of Botting will be banned permanently. I was starting to face quite a few bots lately and I'm actually more amused than annoyed with them.
You can tell if you are facing a bot especially if your opponent do not respond to emotes and play cards without hesitation. I once face one which stopped attacking after I change their minions attack to 1 as I was Paladin, which was hilarious.
