Mines about 1:2 .
1:-0.5 = Not very interesting person .
1:1 = Slightly Interesting person
1:2 = Interesting person
1:3 = Very Interesting person
1:4 + = Godly person
When you post count is pretty small that ratio's won't be as reliable but for anyone over 750 posts it should be a good indicator. More contraversial/popular people will likely have higher ratios. And people who spam alot of will have crappy ratios too.