Very true. It is so hard to find specific content. Part of this has to be due to tag spamming. I like to look for good photography posts but the vast majority of posts with the #photography tag have nothing to do with photography itself - they are just standard posts that happen to have some images (which may or may not be photographs in them). It seems that people have given up on spamming #introduceyourself and have decided to spam other top tags instead.