Short description:
Has 100 liked posts and gave 100 likes
Long description:
This badge is granted when you’ve received 100 likes and have given 100 or more likes in return. Thanks for paying it forward, and liking in return!
Issue:
Receiving 100 likes is not the same as having 100 liked posts. I can have 10 posts, each liked 10 times = 100 likes in total, but only 10 liked posts.