I've daydreamed about tech-enabled direct democracy with arbitrary proxy voting for a while now. I'd love something like:

* anyone can choose to make their votes public

* anyone can "give their votes" to anyone else, provided that person makes their votes public

Then you can have rules like:

* Nominate Al Gore to be my proxy for all votes tagged with #environment

* Nominate my friend Scott to be my proxy for all votes tagged with #taxes

* Everything else I'll vote myself using the mobile app