mobile_carrot:
I notice that the ratio of comments to reads has improved, at least for my own stories, from around 1 in 20 to more like 1 in 10.
If you have a CRR (comment to read ratio) of 0.10 or 0.05 you are doing great. Mine has also improved but it went from 0.026 to about 0.029. But, that is based upon a grand total that goes back to the pre-comment days of 2009-2010. But here is what I have noticed. When it's hot off the presses the a story can have a CRR of about 10%. As time goes on that will drop, just like a hitters batting average. That's because the readers who do leave comments tend to be among the first to review a story. After that (about a week) the average begins to drop as more readers show up who never comment.