I agree with Ben. It's totally meaningless. Some people go on threads begging for reps, and get them. Others give reps to their friends for everything they post. In some cases it's just a measure of popularity. For that reason, I think worrying about such a thing is for those people who really do miss all of that high school bullshit of needing to be constantly reassured of one's developing worth.
I appreciate each and every rep I get because someone took the time to comment on something I posted. But I don't know what my ratio is and I really don't view that as anything close to important.