Unpopular Opinion: I think backdooring is unsportsmanlike
Desperate last ditch attempt at ending a game without playing the game. You and your team have decided that you probably won't/can't win a decisive team fight so you take the easy way out and make sure the winning enemy team isn't paying attention so you can sneaky deaky your way into their base and PvE your way to victory. It takes the fun out of the competitive PvP aspect of the game, it removes the skill and thrill of outplaying someone (inb4 "b-b-but you outplayed them by outsm-sm-smarting them!" get away from me), and it feels all around bad to be winning and doing really well and just have someone sneak behind your team and kill a Nexus before the ENTIRELY TOO LONG recall timer sends you back to base to defend. Split pushing is annoying, but I don't really have a problem with it. But I can't stand backdooring. Just ruins games, man.
or
, I'm going to be split pushing. Sometimes it's successful and sometimes it's not.