Users can submit multiple votes with the same address and signature.

[livinginformation]

Symptoms: See title.

Discovery: I discovered this issue by accidentally signing http://bitcoinocracy.com/arguments/this-statement-is-false four times.

Fix: You need to limit voting to disallow duplicate signatures. You should also add a redirect upon vote submission.

[mathwizard1232]

It actually looks like seven times: http://bitcoinocracy.com/arguments/this-statement-is-false.json

Nice catch. Fun argument. :-)

[livinginformation]

Interesting, the apparent 7 submissions have only mapped to 4 submissions in terms of "real" bitcoin value.

[arsenische]

Thanks for pointing this out. I added a constraint to the database so it should never happen again. Added redirection as well.