Is your account actually compromised, or was it sold and transferred to a new owner[1] as a result? The change of email and password reset also reflected on bpip[2]
There may be a way to recover[3] your bitcointalk account, however given the allegations of account sale, I doubt the admin would help you. Plus, the email you have used in your bitcointalk account has nothing to do with the forum as it is your responsibility to improve its security from the get-go.