Summoner spells
For most of the people there are only Heal, Ignite, Smite, TP, Flash and Exhaust. Anything else = instant flame + report if the game is lost. In addition to that, some of the spells are 'lane specific'. So I'm not allowed to pick Exhaust mid because my enemy is Yasuo who is dependent on his attack speed and mobility unless I want to hear my teammates crying all the champ select until I finally get to mute them, but then in-game they refuse to help me because I am Exhaust Azir who might be 15/6 but he has exhaust so **** him, right? I'm sick of people thinking there is only one way for each summoner spell to be picked, there is this little tiny thing called diversity, y'know?
even thought it might make some sense i and he played it before, i cant be 100% sure he isnt a troll. Then i get afraid and try to talk him out of it.
When you said that people wont help you because you picked 
and went something lik 5/2, its probably because you muted them before and didnt see them asking you for help in chat or something, so they got angry and didnt want to help you niether.