So, you can decide how you spend your Bitcoins, or even which cryptocoin you use, but you won't be making any design decision for the Bitcoin Project, unless your code is accepted as a pull request on github.com/bitcoin. No democracy involved. Sorry about that. 
github.com/bitcoin is not necessary Bitcoin. It is just one of Bitcoin full node implementations - Bitcoin Core, previously Bitcoin QT and Satoshi client. Bitcoin Core should finally move to github.com/bitcoincore and the github.com/bitcoin can be used as a gateway to all Bitcoins full node implementations - this would be more realistic description of what github.com/bitcoin is. Wladimir should grow up and do the change, it is very important for decentralization of Bitcoin development.