ember1201 at https://kitsu.io/users/rokejulianlockhart/library?sort=rating&status=completed#profile-links only allows https://twitter.com/RokeJulianLockh, not https://twitter.com/i/user/3782186368. The latter is an account-specific permalink useful when binding the hyperlink to the username isn't desirable. Please note, however, that the Facebook entry does support this.