I have been using Hummingbird to add about 500-600 friends a day on 5 accounts. I am also tweeting real stuff using those accounts. After a couple of days, all my accounts are now banned except for 1 of them. Is this happening to anyone else? I am guessing since I haven't done anything else wrong, it must be aggressive following/unfollowing as a result of using Hummingbird. I haven't even put affiliate links on the accounts since they are still fairly new. If you have any advice or experience, please share. Thanks.