Comment Spam Multiplier

There are a number of sites that are harvesting the RSS feed of the comments on this site for SPLOGS. I know this because they send pingbacks when they post the content on their sites. This has been getting worse for me over the last few months – anyone else seeing it?

It’s annoying to have to delete several pingbacks on every legitimate comment, but the really nasty side effect is that they behave as comment SPAM multipliers. When I get a single SPAM comment, I end up having to also delete 3-4 pingbacks from SPLOGS that harvested the SPAM comment (along with the original SPAM comment). :sigh: