Here are the grouped match percentages for a random pool of 500,000 users. Astrological sign has no effect whatsoever on how compatible two people are.
We're showing you this table, as dull as it is, because the uniformity neatly illustrates how beefy our data set is. There are 144 pools considered above, and they all match the mean plus or minus 0.5%.
The OK Cupid data-mining blog is pretty entertaining.
Current Music: Richard H. Kirk -- The Number of Magic ♬