Bot lane should be reworked.
I'm going to cut to the chase here because I don't feel like typing too much. It's a game of 5, but there are only 3 lanes and a jungle fit for 1. One person (The support) will be deprived of getting fed, farming, will get flamed at for getting kills, etc. Now I'm not saying I'll throw a fit if I get autofilled support; because I don't mind playing support every once in a while.
But I understand why so many people hate landing supports. Your lane relies so much on if your ADC is a retard or not. If your adc is bad, it affects you heavily. If you're adc is good & gets fed, your team will praise the fed 
who got a pentakill, but no credit to the 
that made it possible.
TL;DR - Supports need more to do. And maybe different point system as well, so that a 0/4/52 
could be recognized as op, instead of an adc with 17 kills and 10 deaths.
