I had hoped that I would never have the need to ever use /report. But tonight it seems I did and for more than one character........

I often joke around with friends through private channels and we all know that we are just joking around, but never on public main chat.
I do differentiate between friends just joking around and strangers coming up and being rude and offensive.
However when these two characters, that I have no clue who they are, ( and that will remain nameless to the public) approached me, I didn't find the proceedings very funny.
I attempted to do a /report for both characters after the incident, but the system only allowed me to report one. (Took me a min to look up the correct command since I had never used it and had, and still do, hoped that I wouldn’t ever have the need to use it.)
And so my wish is that users be able to /report more than one character at a time.
How exactly dose /report work? Dose it log the last 50 lines of chat or the next 5 min of chat or both?