It appears from Bpip that this is the only time you have changed your account password, and it hasn’t been changed before. Also, your account posts indicate that the account did not post any spam during your absence from the forum, and the old posts contain your Telegram ID. Therefore, I strongly believe that you were not hacked as claimed. There is no risk if you don’t use it, as there is no feature on the forum to delete your account. As previous members advised you, you can forget about it.

I hope that if you have stopped using this account, you do not sell it to someone else, as your red tags indicate that you are involved in selling forum accounts.