Silver, Split-pushing and you
I have noticed that a scary amount of people don't understand the concept of how easy it is to abuse split pushing when the enemy team comp can't deal with it.
Say you have a Nasus or a Tryndamere raring to go in a good match up and you know it will come down to you and the 4 or 5 enemy champs dancing in mid under your tower. What common sense would dictate is that you take something with anti-dive mechanics (JANNA COUGH COUGH ANIVIA COUGH COUGHMORGANSEJUANIANNIE) that punishes going balls-to-the-walls diving and have some form of extremely fast and safe waveclear (COUGH COUGH SIVIR COUGH COUGH ANIVIA SNIFFLE) so they can't hope to seige without dying and you can shove back super fast the moment they leave to deal with a split pusher.
But instead, you got people picking Vayne and Taric with leblanc as the mid laner, they get stomped, they call for your help for 10 minutes and flame about how it's a 4v5 despite you not even being fed enough to do your own thing, and then the game's over.
Heal the hurt.
Stop the madness.