Not really anonymous during distribution of coins to voters.
You'll need to show IC for verification before ballot papers begin given.
Same goes for vote coin. They'll need your wallet address (so that it won't go to someone else wallet) and match your IC (make sure you are citizen).

Then you'll need many hard forks for dun and palimentery seats. You surely don't want kl registered to send coins to Johor dun candidates.

Yup, there'll be lots of coins types to be created.

I've just thought of one thing. With Blockchain voting, the results is near instant.