Earlier quoted context omitted.
I'm not sure how effective that would be in practice. Total Tether issued as of the end of 2017 was about 1.3 billion. Coinbase booked over $1 billion in revenue in 2017; the amount of money going into them was presumably much bigger than that. (There's also weak evidence from price differences etc between exchanges that the bulk of the demand has been coming from Coinbase/GDAX.)
> Total Tether issued as of the end of 2017. Total Tether issued as of the end of January 2018 is about 2.3 billion.
The all-time-high was December, so anything issued after that didn't help in reaching it.