i believe this is a bug in kbin somewhere causing (almost) endless loops for the same activities (data sent between instances to communicate your actions like votes) over and over again.
all the accounts i’ve looked at so far are (or at least look like) real users. we do not believe that this is a malicious action triggered intentionally by someone who has access to the account. you just happen to be one of the unlucky so far 37 users affected by this.