That happened to me the other day, played SL and got a troll. During the draft phase 3 people preselected naz, tass and valeera, and I asked if I should heal or tank, the other one without a hero selected started being edgy right away, I asked valeera too if she would mind changing to a tank or heal so that I could fill the other role. Tass and Naz instalocked in the first round of picks and he selected rexx, valeera didn’t change so I picked a healer.
When the match starts Rexx says: so, no tank??? I was trying to remind him the many times I asked for that politely and he afk’ed in the hall of storms. We got a bot. 10 min later he reconnects just to complain and afk again but without disconnecting.
Of course we lost, and I told him how sad I found his behaviour. We reported him for afk-nonparticipation.
After the match he sent me a friend request. I declined. After that I got like 15 friend request more from different accounts (I suppose all of them would be him)
So… the report system means nothing when a person can have 15+ accounts.