In what way does adding tags do more than<p>1) searching for stories by keywords via HN Search,<p>2) scanning the main page and the new page with word search on the page (implemented as CTRL-F in many browsers),<p>3) searching for best comments on the bestcomments<p><a href="http://news.ycombinator.com/bestcomments" rel="nofollow">http://news.ycombinator.com/bestcomments</a><p>page,<p>4) searching for active threads on the active<p><a href="http://news.ycombinator.com/active" rel="nofollow">http://news.ycombinator.com/active</a><p>page,<p>5) searching for comments by users with high karma averages on their comments by following links from the leaders<p><a href="http://news.ycombinator.com/leaders" rel="nofollow">http://news.ycombinator.com/leaders</a><p>page, and<p>6) doing site-restricted searches of the site with Google<p><a href="https://www.google.com/search?sourceid=chrome&ie=UTF-8&q=tags+comments+site%3Anews.ycombinator.com" rel="nofollow">https://www.google.com/search?sourceid=chrome&ie=UTF-8&#...</a><p>to focus on comments with particular keywords? I use all of those methods on different occasions to find good content here. What could we all do with tags (implemented how?) that we could not do by those means?