If you are running a blog or CMS, some of your users need to upload (POST) stories/texts, images and other media. Depending on the website, that can be quite some data, a few megabytes. Timing out too early will make your editors unhappy (and still allows for enough of a window for slow loris.) I have good experiences with server side proxies (freeing Apache resources for all users on slow links), our problem was getting a 4 MB of HTML to users on slower links. Apache kept all its resources till the last byte was sent.