Doesn't PCcoin remove the potential negative interpretation of 'mass' and doesn't PC imply it is accessible to and thus a coin of the masses?
I suppose
PCcoin does imply a cpu-only coin since your stated design is proof-of-work.
Masscoin sounds more powerful yet doesn't convey that it is digital money.
Proof-of-stake requires no significant computation thus runs on any PC, but it
can't be a coin of the masses because it can't distribute new coin in any competitive manner accessible to those only with a PC. Wealth is power law distributed¹ thus transactions will never do the job that socialism does to redistribute wealth to the masses and prevent the wealthiest 1% from owning everything. For money to not end up fiat where it can be debased top-down by socialism, the decentralized crypto-currency must be able to do the redistribution job that socialism is doing.
¹Dragulescu & Yakovenko. Exponential and power-law probability distributions of wealth and income in the United Kingdom and the United States