Under laws like the Computer Fraud and Abuse Act (CFAA) in the U.S. or similar legislation worldwide, circumventing a website’s paid features (even just to see blurred photos) can be considered unauthorized access. While prosecutions are rare for individual users, Badoo can and does pursue legal action against script distributors.
Badoo occasionally offers "Free Credits" or "Super Powers" for completing tasks or logging in daily, which can be used to see likes.
Some browser extensions designed to "unblur" images track your browsing history or collect personal data from your profile. Legitimate Ways to See Your Likes