はてブうんち is a Chrome add-on developed by デベロッパ that replaces the stars on Hatena Bookmark with poop images. By replacing the stars with poop images, it aims to neutralize the anchoring effect. It also replaces the colored stars with colored poop images, providing a unique and playful browsing experience.

This add-on is designed for users who want to add a touch of humor and fun to their browsing experience. With はてブうんち, users can customize their Hatena Bookmark stars by replacing them with poop images, adding a playful twist to their bookmarking activities.

Please note that this add-on is available for free and can be installed on the Chrome browser. It falls under the category of Browsers and the subcategory of Add-ons & Tools, making it a convenient and entertaining option for Chrome users.