A gold bug is someone who expounds the virtues of gold as an investment, and who thinks its price will perpetually increase.

Why are they called gold bugs?

"Gold bug" (sometimes spelled "goldbug") is a term frequently employed in the financial sector and among economists in reference to persons who are extremely bullish on the commodity gold as an investment and or a standard for measuring wealth.

What is golden bug code?

The GoldBug code included in a short story by Edgar Allan Poe published in 1843 called The Gold-Bug. It tells the tail of William Legrand and how he was bitten by a gold-colored bug. The story includes the cipher and a description of how to solve simple substitution ciphers.