It is the symbol for Brightcoin, that is already traded on Etherdelta. Either Binary change Acronym or Scam soon(vote for the 2nd)
there can be more than one currency using the same symbol
search for BTG on Coinmarketcap.
We are talking about etherdelta, not Coinmarketcap. There are no identical symbols there. If binary wants to BRC symbol it can be BRC2, BRC3 e.t.c. But there are now news from them...
IT's like stellar lumens where on some exchangers it's called STR and on others called XLM
and bitcoin cash too, BCC and BCH.
they only need to change 1 or 2 single letter and problem fixed