Discourse reactions is a plugin that allows you to express sentiments other than the built-in like .
Hover over (or tap) the like button to see the additional reactions, which are configurable as any emoji, but will be the default set on meta:
To gather additional community feedback, We have temporarily enabled this plugin here on meta for testing for one week.
After that week, all the reactions will be hard-deleted and only likes will remain. Enjoy and have fun – feedback can be gathered in this pinned topic.