I believe same thing for comcast. I got kicked off when they did the merger and they changed my username. Trying to get back on never worked because I could never get the confirmation e-mail. I tried for months. No response from Moderators, but again I may have never gotten e-mail. I had to create a gmail account to resolve it.
Lost all my history now. Now I am marked as a new member and I have been on for years. The whole merger was a disaster.