There's probably a different cryptocurrency for each user on HN, certainly enough for people to argue over until the end of time.
Perhaps it's as simple as this:
1) Make adding a box to pay a website in your crypto easier than adding google analytics or facebook share links.
2) Make buying small amount of your crypto easier than anyone else's crypto.
3) Give lots of your crypto away to as many folks as possible to put lots of it into circulation.
4) Provide easy ways for people to buy amazon and walmart gift certs with your crypto. (so web site operators can do something with the coins they receive)
Has anyone done step 1 yet?