Market cap is not a valid measure of success. If I issue 100 trillion “runeks”-tokens, and sell you one for one cent, this crypto will have a “market cap” of 1

Market cap is not a valid measure of success. If I issue 100 trillion “runeks”-tokens, and sell you one for one cent, this crypto will have a “market cap” of 1 trillion. But that doesn’t mean it’s either useful or successful. Your example shows there’s something wrong with using market cap to measure the success of cryptocurrencies, not that Dogecoin is successful.