User blog comment:AYET/2013 Devil Fruits Tournament - Voting Eligibility For The Final Two Rounds/@comment-109.242.16.184-20130729123954/@comment-3125914-20130729130252

You made a good point. Some users might have some issues which makes them unable to vote in time. Or some may become interested later in the tournament. I think they should have chance to vote in the finals, so a 1/4 attendance might be enough.

Besides, an invasion of unfamiliar and suspect users doesn't happen so frequently.