Site Maintenance

     I find it annoying when I post on a site and I have to wait for the post to be approved.  It kills the excitement I had for posting in the first place.  I hoped, on my website, I would not have to approve comments but now I find myself in a dilemma.  I have been getting insurance spam on my site.  It isn't funny and only subtracts time away, making sure my site doesn't turn into a pan handler.  What to do...?  Approve comments?  Leave as be?