Addressing Smurf issues
Here's something that will help, Riot:
Say you have a summoner, who's level is 5 AND whose last 5 games looked something like 24/2/19. Boost his level gain substantially.
Why? Either 1, he's a smurf, and you need to get him out of lower elo so the new players can be left alone. 2, he's just a better player and needs to be up against tougher more experienced opponents. Again, if he just won 5 games in a row but didnt have insane stats like I listed, then dont boost him. But this seems like something that might not fix the issue, but help a lot.
or
can easily gain high kda scores and win games in low tier games naturally due to the nature of their kit, and it's not unheard of to perform well with champions you have experience with and win in succession.
. Riot would (or should rather) take these "OP Low elos" into account and give them a different system. Or something like that. I know what I'm saying is vague but I think you get what I'm trying to get across. Some champions are made for beginners. Others do well 1v1. 1v1 is most of the fighting in lower summoner levels, so it would make sense do give 1v1able champions a different scale than others.