No one is up in arms. The kid has done himself no favours; his response to Damien Martyn wasn't called for. It was one of those "better to say nothing and let people think you're an idiot than reply and remove all doubt" moments.
You are joking right??
His character got attacked by a flog who has represented (talented but arguably very flaky) Australia at the highest level of his sport, who's opinion would always carry weight due to the many people who follow him on social media. Oliver has every right to defend himself anyway he felt like. We have just seen Fasolo and Cloke walk away from AFL with depression, partly due to social media scrutiny, and here we have a bully like Martyn whose opinion carries serious weight, bagging a 19 year olds character? Turn it up mate. If I attacked your character and called you a pussy knowing it will most likely get highlighted on tv or radio, are you telling me you wouldn't defend yourself??? Pi$$ off...