My advice: The most important thing is to have enough examples of the symbol in use in running text (i.e. not an icon or logo). Real published documents that demonstrate a user community are important.
I recommend studying Unicode's Criteria for Encoding Symbols <http://www.unicode.org/pending/symbol-guidelines.html> carefully. The rules for emoji are totally different, so saying "but emoji..." is meaningless. The proposal <http://unicodepowersymbol.com/>to add the power symbol to Unicode is a good proposal example that you can use as a model. As far as the copyleft symbol, it's well-defined (has a wikipedia page) and a web search shows demand for the symbol. It is used in running text and has semantic meaning. You found it goes back to 2000, so it's not a transient fad. I think a proposal would have a good chance of success if you can find a number of good examples of usage. This is my personal advice - I don't speak for anyone - but I've had a couple symbols accepted so these guidelines work for me. Ken On Sun, Feb 14, 2016 at 3:36 PM, David Faulks <[email protected]> wrote: > Hello, > > This subject has been discussed before, but I am somehwat uncertain about > something: > > If the copyleft (reversed ©) symbol was proposed for encoding, with > examples (from PDF files) showing it being used in a similar way to the > copyright © symbol, it is likely to be accepted for encoding? > > Thanks for any opinions. > > David > >
