For me it depends on who it's coming from. If it's someone I'm close to, such as family or close friends, then I would find it hurtful. But it really depends on what's said too. I can't stand being patronised and I'm reflexively very defensive about that thanks to my dad, that's something that I respond to very quickly and very negatively, sometimes when the message wasn't even intended that way. Those things can set me off, but only if it's coming from someone that knows me personally, and those who do are probably used to it by now.
If it's someone I'm not familiar with then I don't really care. They don't know me so I don't see why I should waste my breath defending myself or retaliating, it's pointless.
If it's someone I'm not familiar with then I don't really care. They don't know me so I don't see why I should waste my breath defending myself or retaliating, it's pointless.