Fast keyboard 1-4 emoji reactions for civitai.com instead of clicking the buttons. First press will expand the reaction toolbar. Subsequent presses will add a reaction with the matching emoji from left to right (thumbs up 👍, heart ❤️, tears 😂, crying 😢). Shift + number (!@#$) to remove reaction. Make sure your mouse is over the image you want to react to.
Stopped working after latest Civitai update.