PBE testers AFKing

I'm pretty new to the PBE but i've had this problem throught many games. AFKers. Every other game i've played there has been someone who afked/left. Yesterday i had a game with 3 who just left the game! Sometimes before they just leave the game i ask why they're leaving and they don't ever give a reasonable reply. Also people seem to think that since its the PBE it doesn't even matter if they leave or not. AFking Should have a consequence especially for people who leave during the game . Edit: This isnt aimed at people who have issues with the game client directly. More aimed towards the people who just says "lol gtg" or they just rage in chat then leave.
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