It's as simple as it sounds. Download the Shutup.css file at the link below and apply it to your custom styles in your web browser. For most browsers you can find custom style sheets under the advanced settings. If you're a Firefox user you can download Stylish to manage styles and give you finer control over which sites the Shutup.css file is applied to—it also makes toggling it on and off easier.
Once you have the style applied to your browser nearly all web sites with comments will no longer be displaying them. The screenshot above shows the end of a Lifehacker article with the style sheet not applied and then applied, removing the comments. Easy but effective.
Have a favorite user style hack? Prefer just to silence YouTube comments? Share it in the comments below.
Shutup.css [via Make]