Earlier this year in April, we added the functionality that allows article commentors to subscribe via email to be alerted when someone comments on an article that they have left a comment on.
(7) months later, we have 2,935 unique email subscribers to receive follow up comments on 3,127 unique articles. Not quite as explosive on the growth side as we had expected, but still a significant metric that shows user engagement…and another way that we bring repeat visitors back to your articles. :-)
Now, these numbers don’t correlate directly, but in the same time frame (April 2nd 07 till today), we accepted 4,771 new comments on articles. It’s our belief that allowing users to comment on articles adds more value to our members than it takes (for those who take the protectionism viewpoint that user comments divert traffic away from the author).