The rare chance I go into beginner mode, is usually just for testing new builds, or a quick 15 minute match for easy IP when i'm only 30 short or so. If I see someone not doing so well, I just tell them how they can improve without yelling and saying "U SUK GO PLAY ANOTHER GAME". unless I can tell without a doubt they are purposely being stupid. like 45 deaths in beginner 5 minutes in. But I never complain about lack of skill unless I have perfect reason to. I know this mode is for new players or anyone who just wants to try out new champs. So I agree, anyone who complains about players not being pro in this mode are probably bad themselves and only go in this mode to act pro. when in PvP they are the worst ever.