Are any crypto currencies widely used for transactions these days? ie the classic coffee shop purchase. BTC had a start but now seems only useful for people buying as an asset.
I think for the time being it's meaningful to think of cryptocurrency transactions as stock purchases / fees to the stock exchange.
Edit: Monero. It's currently 15th on Coin Gecko by market cap at $2.3 billion. It's 3rd in the number of most developers behind Bitcoin and Ethereum.
It's a gameable metric. How do you track it anyway- by github contributors? By number of people submitting patches?
Also, not all contributors are equal...
And roll-up transactions are currently sitting at less than a penny.
1. Speculation on highly manipulated markets.
2. Illegal transactions.
3. Ransomware.
4. Innovative new kinds of fraud using smart contracts.