Aussies are renowned for cutting down tall poppies.
I recon it's a jealousy thing. Mediocrity always feels threatened when outshone by success. When one achieves success, in whatever field, others who don't are somehow made to feel inferior, and rather than be inspired, or challenged to do better, it's easier for them to try and cut down.
It's a typical knee-jerk reaction.
What can the "tall poppy" do about it? I recon, don't even bother with it.
Whenever someone is doing well, they will surely attract critics. These self same critics often never achieve anything of value in their own right.
I like the question. Thanks.