Riginslinger, you're right, Oregon's system does yield much higher voter participation than just about anywhere else, and there has been little reason to suspect any higher incidence of fraud than under the old system where you'd go to the polls on election day and fill in your ballot in the booth.
Sure, ballots can be stolen and people could pay others to fill in their ballots in particular ways, but that can happen anywhere with absentee ballots, and it's hard to commit widespread, systematic fraud that way.   And the criminal penalties for something like stealing or destroying someone else's ballot or paying/coercing someone to vote a given way are so severe that it's hardly worth risking it to steal a vote or two.

The practice of making people vote on machines (electronic or otherwise) that are subject to frequent breakdown or malfunction, or having so few of them that people have to wait hours in line to vote (on a workday, no less) -- that's really ridiculously unfair and undemocratic.

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