wp-ulike

WordPress engagement plugin with Like/Dislike buttons, analytics, and developer hooks. Supports Posts, Comments, WooCommerce, BuddyPress, and bbPress. Fast, GDPR-ready, and used by 80,000+ websites. Maintained by Alimir on GitHub, where it has earned 109 stars from the community.

It's actively developed around analytics, bbpress-plugin, buddyboss, and is a solid reference for anyone building with these tools.