In posting to dasBlog, when an image file name contains a string that's in your 'Content Filters' list, the image's src attribute gets corrupted. 

For example, whenever I enter eXist in a blog entry, the Content Filters pick it up and make it a hyperlink to http://www.exist-db.org.  If I try to add an image to a post where part of the image's file name is 'eXist', I end up with a red X.  Easily fixed ('exist'-with a lower case 'x'-doesn't get filtered), but it would be pretty neat if the filter didn't apply itself to stuff like that.