Hello everyone! Recently I've bought a number of accs on bitcointalk.org. And I've faced with a serious problem - almost 80% of those accs were banned after I tried to log in and changed the passwords and the email adresses. They were banned by the following reason:

Sorry Guest, you are banned from using this forum!
For security, your account has been locked. Email acctcomp15@theymos.e4ward.com

Have I done anything wrong or these accs were hacked and got the ban? Has anyone had such a problem before? Please, help me to deal with it.