I have not been able to figure out any rhyme or reason for my hub scores going up or down. It seems like they are more often up on days when I have the fewest hub views. Is it determined by votes, views, comments...?
HubScore is based on a complicated formula involving a number of factors, including traffic, how much of that traffic comes from outside of the site, thumbs up/down, comments, etc. Don't worry too much about small fluctuations; they're completely normal and you'll drive yourself nuts trying to find a rhyme or reason.
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