Low ELO mentality.
Pick Zyra, Vel'koz, Brand or any traditional carry support and win lane/lose game while doing well? "Damn, nice try bro!" Playing non traditional carry supports like veigar, win lane/lose game while doing really well? "GG Veigar support is useless...If you were a real support we would of won."
Smurfing and running into these people hurts my soul, especailly when my Cait can't land a single Q in lane and gets out pushed by a MF. The whole point of picking Cait is for shoving hard and lane domiance, and yet this person couldn't even get a 3rd of my damage while complaining I was holding her back.
I really don't care about winning/losing or how my team does when smurfing, but don't go blamming when you don't know how to carry. Biggest pet peeve when smurfing.