I think it needs to be spelled out fairly clearly: spurious reports with no legitimate reason for submission are absolutely an abuse of Rule 7, and will be handled as such.
Reporting brand new accounts because they haven't had a chance to fill in their information yet is a very good example of this. It's uncalled for, it wastes our time as moderators and admins, and is emblematic of an unwelcoming attitude towards new comers on the instance. From this point forward, we aren't going to tolerate actions like this anymore.
The report system serves as a way to report legitimate grievances against the instance rules, and it should absolutely be uses for that. Spurious reports only makes it harder for us to act against legitimate ones.