I understand the unwillingness to be seen as a reddit clone, but I think that there's something worthwhile to being able to easily access only one tag. It's not the same as a subreddit. While you get a group of posts tagged with whatever you looked up, they weren't submitted to the same place, they merely had the same tag, or, in some cases, the community assigned it that tag. More importantly, though, is that, every now and again, I want to look through only political submissions, for example. I don't want to have my entire feed be only #politics all the time, but I do want the ability to access single categories at a time. And again, I think that there is a clear difference that sets tagging apart from subreddits: there are no clear 'spaces' for tags, users tag as they please.