Dupe cheating has been a bane of FN TD's. There has been numerous examples, I will just provide a current one. DJ's TD about the Jets. I would provide the link but apparently Firefox is not compatible. phil garret provided a first argument, then forfeited his second turn. Yet he got 18 votes!! Either 18 members of FN are brain dead (a possibliity) or something else is going on. How obvious does it have to be? I have seen too many instances where a member made skilled and thoughtful arguments, only to lose to dupes.
I realize that this is a free site, paid for by ad money, resuling from comment count. But please!! Many members put a lot of hard work into their TD's. To have that subverted by dupe voting is just wrong.