I use NetNewsWire for reading RSS feeds. One of the great features up till recently has been the ability to have it search places like Feedster and have the results show up as a feed. In the recent past my regular search for anything to do with Pulmonary Fibrosis has achieved nothing more than hugely long posts of spam (click and see). Since the 15th there have been around 27 hits on that search, only ONE of them being an actual post by someone. And all the offending posts have been at blogger.
I think Blogger needs to do something about this. Have a better way of detecting automated blog signups or something. Currently it has drastically reduced the usefulness of things like Feedster for me. At least Feedster does have the ability to filter out responses from some urls. I just need to see if I can get NNW to support doing that.