It's funny when people try to trashtalk your build...
When they don't play that champ. I'm sure someone, somewhere, during patch 4.20, went "red smite is useless idiot Warwick gg".
Ofc, this happens because someone is 0/10 and raging about absolutely everything, and eventually they click on you and get mad about whatever they see. Almost as bad as the ones that look up your op.gg and comb through it until they find something they think they can rage about (omg you've got a negative KDA on Sona uninstall scrub).
I don't usually pay attention to this but a game I just had was the most glorious example. "Vi wtf you're our initiate why are you full AD double brutalizer is so bad". Current build is Warriors + Brut + Mercs + Rands + half a BV. This is also the double brutalizer build that is basically the reason Vi has been so good this season. On top of that, I'm fed out of my mind and I'm the only one that can kill the carries. So the rager managed to get absolutely everything wrong, except the name of the champ I was playing. Astounding.
On a more positive note, can we start discussing items in terms of efficiency or something, not just "bad". I see someone go "X build path is inefficient" and maybe a discussion happens, I see someone else go "Rushing Talisman on Janna is bad" and the Janna throws a temper tantrum. Straight up calling things bad in this game edges into the territory of the kids who look at everything and scream "bad bad you're all BAD chogath mid is bad BAD BAD BAD why aren't I getting carried you baddies?!?!"