Hey all! I'm a new user here, but I've actually come and gone on Wave Accounting for over a year. The last time I was here I saw this discussion on cryptocurrencies and just came back to see what had happened in the meantime.
We didn't choose Wave last two times around because of the no crypto issue, and I am a bit surprised that there still isn't the ability to at least create custom currencies. Other than that, what you have would be perfect for my company (And the one before this one, and the one before that one...). I suppose that I can just select BTN or some other random currency that I won't use, and just remember, for example, that this is Bitcoin, but it should be trivial for you to add the additional currency types. Less trivial would be if you could (Please!) allow those currency types to have up to 0.1234567890 decimals of precision. If 10 is impossible, then as many as you can.