t h e y w e r e f e a t u r e d a r o u n d 2 0 1 6 a n d 2 0 1 7 m a y b e

Those featured anonymous anims are from a time where anonymous posts were shown on the FA feed. They are not getting shown any more, hence no more feature for them

Because back in 2016-2017, FA had no other animactions to feature so they featured those animations. Now, there are new and better ones!