Say What?

Most long term residents of Gilbert are proud of the moniker "Hay Capital of the World" from back in the Mister's youth. I suppose he was called a hayseed or something like that at one time or another. But the latest term of derision for our residents - "Gilbillies" - seems egregiously incorrect in view of the fact that 1) we have very few hills 2) we boast the highest per capita income in the valley and 3) we have the most highly educated people in the valley. Who comes up with these names, anyway?