This illustrates more than anything the Dunning–Kruger effect. Dilettantes and dabblers with a little knowledge often tend to be the more nasty on online forums

This illustrates more than anything the Dunning–Kruger effect. Dilettantes and dabblers with a little knowledge often tend to be the more nasty on online forums, while actual experts have the humility of not just knowing the limits of their knowledge but more importantly have enough information to contextualize even those questions which might appear dumb to an untrained mind.