I was thinking of using Tether as a dollar proxy in trading swings in BTC and others.
That should work better when most cryptos go up and down at the same time.
It has 100 million units and good volume. Should be fine for risking small amounts of
money for a few days between buying/selling other cryptos.
Someone just pointed me out to a clause in their Terms and COnditions, saying that it should not be used for money laundering. I am unsure what all does that cover. But if they have the ability to pull out coins from someone's wallet who does that, then it would be the most stupid investment ever.