I just finished deleting a bunch of comments on one of my blogs. 

I had 9 from the same person, same exact content, on 9 posts.  The posts and site are about fitness equipment.  The comment was about building seo'd sites.  Specifically, if I was tired of lousy traffic, there was a solution, just click here.

That got me thinking about why would that person do that?  Or why would that person pay a service or for a tool that would post such a comment on a site like mine.

There's no chance in hell I'm going to allow comments that have nothing to do with the post, or the site subject.

One comment I did not delete but removed the link.  Why?  The comment was good, but it linked directly to the sales page of one of the products I promote on that site.

The comment was too much of a response to the post to have been done automatically.  I think.  Of course, there's always a very slim chance that, given enough comments, one will be a great match.

I deleted a comment that said mine was a great post and they had to go do something with the toaster.  

I deleted a bunch of "Great job.  Glad you're posting.  I have to come back and look again."

Usually, I don't go look at them, the plug in removes them.  Today, I was curious.

I just thought I'd share and ask a question?: What type of comments do you  get?