No, it's most likely 300 good reports.
I don't have the link, and my repot "baseline" is:
You have reported 313 posts with 97% accuracy (293 good, 11 bad, 9 unhandled).

Seems like you have a good opportunity to follow up. Would you mind if I inbox you some of the possible reportable posts (in addition to yours and of-course if I come across) so that we know the outcome ASAP. I am just curious to know the actual number.
PS: I did not report it yet hoping you will take the chance.