There are a few coins using the copyright word 'Dollar'
Steem Dollars
USDT from Tethers
It is pointless trying to use the word 'Dollar' to get people to buy into your coins. The word 'Dollar' is copyright to the private bank Federal Reserve. Unless they are bank rolling Steem or Tether, they can actually use the laws to shut down those two coins that use the word 'Dollar'.
Then why have not they done it yet? Look pal; don't get so much fixed about this word "Dollar". And when it is joined with a new word like Steem, it no more remains the same dollar. Like there is a word stick, having total different meaning, joins it with match, a new thing is created. lol
It's none of our business; let the prey and predator solve it.