Obviously they can. One would think if one were not interested one would just skip the thread. But nope, not the WC. It devolves into insulting the poster and questioning how much the person actually needs money and their life decisions. It was obviously posted here because of his IU connections.
You added to the arguing. You could have just left too. But when I read your OP, I must say I wondered why a 30ish year old, pro athlete with a college degree needed money.
I'm not saying he didn't need help nor deserved help, but I don't think it's unreasonable to question it. And you simply could have diffused the thread by acknowledging it may seem a little odd, but in this life and death situation for a former IU player, your were giving him the benefit of the doubt and donated. Instead, you became snarky and combative, which led to a sparky and combative response to you. And so it began, again, like 90% of the threads devolve into, a tit for tat.