I have been manually blocking, but like you say @creekycoffee, they’re reblogging the posts from each other a lot of the time. I wonder what tumblr can really introduce to combat it? Maybe a better reporting system or a hide feature? Allowing you to hide the text from a reblog appearing in the immediate drop down window of a post as it does now? Maybe it’s some of the tags I am using? It is happening to my Peter Steele pics and Daniel Tighe doodles.