https://kitsu.io/users/rokejulianlockhart/library?sort=rating&status=completed#profile-links doesn't validate hyperlinks by verifying that they redirect to the correct destination, it just uses some input validation (presumably RegEx). This is inferior to the aforementioned because it prevents the user using hyperlinks like https://linksta.cc/going/7365?https://twitter.com/i/user/3782186368 in order to gauge throughput.

Would remediate #2273 (comment).