Just to add a little motivation to commenting on my posts, BESIDES the fact that you will get free traffic and a link in my weekly Link Loves, I just thought I would let you know that the comments are now “dofollowed”. This means that they are indexed in Google. 
There has been a steamy debate lately whether nofollow comments are indexed too, but we’ll just make it safe and use dofollow.
Have I made it clear enough that I like comments? 
nice
Glad to hear it
Google like to push that this is to stop spam. It’s a lot easer to stop spam with a couple of plugins that check for it.
Why take away the incentive for others to spend the time commenting.