The from: operator successfully filters out posts from the user @RetweetTestRecv when looking for posts with RetweetTestRecv in the text. Here's the search string and corresponding URL:
-from:RetweetTestRecv RetweetTestRecv http://search.twitter.com/search?q=-from:RetweetTestRecv+RetweetTestRecv However, when searching not just for mentions of RetweetTestRecv but specifically for the hashtag #RetweetTestRecv the from: filter no longer applies and we see far more posts, some of them from @RetweetTestRecv. Again, here's the search string and corresponding URL. Notice the added #: -from:RetweetTestRecv #RetweetTestRecv http://search.twitter.com/search?q=-from:RetweetTestRecv+%23RetweetTestRecv A relatively small issue, I know, but pretty important for my own application. I'm going to have to work around it by getting more results than I want then eliminating a lot of them. Regards, Dave