One of the articles mentioned that some browsers submitted blank forms because they don't support inline PDF forms. Who, exactly, thought that using PDF was a good idea? The whole point of the web is that it provides layout standards. Why even bother using a web browser if you're just going to try to hack around it by using a completely different content format, PDF, shoved in using browser plug-ins. It might has well have been Flash. Use the web or do not. There is no halfway.
My jaw hit the floor when I read this. I'm not sure how you can get so incredibly far afield with what should be a pretty simple system. The group developing the system DC was testing needs some serious help if they're sticking PDFs in a browser and calling it online voting. So incredibly unnecessary I can't even begin to fathom how they wound up with this as a solution.