Sure. People can live in a log cabin and wait six months for a letter from the relatives in Spain.
I'm just fine and dandy with my use of the word "essential".
Then who's supervising the elections? Who's gathering up the ballots and watchdogging their transportation to make sure nobody changes them? Those people are the ones with the power.
There are at the very max only a few hundred voters in the communities (since communities are most likely very small). You could easily craft a voting system that does not have this potential for abuse.
The potential for abuse and dictatorial meddling will always exist. If no authority exists, then the person with the biggest muscles will be the dictator. You keep grasping for the impossible. We need the Internet to watchdog the watchdogs.
First of all, there is an authority, second how has America had elections for the past 200 years, third the decisions the community makes as a whole are so simple that the internet couldn't possibly help.
Hell, on the Internet nobody has any real authority except the people controlling individual switches and web sites--and the system can sidestep those people easily. The Internet is the closest thing to your idealistic system that we will ever see.
Um no, where did I ever say no formal authority? And since when were people allowed to have whatever definition of harm that suits them as long as it follows American law?