You can imagine that Reed Richards would feel some sense of empathy for the scientific curiosity that drives Brainiac, even if he would also find himself horrified by the lengths that the alien goes to to ensure that he keeps assimilating new ideas and new cultures. After all, he comes from this strange, abstracted science fiction background that Stan Lee and Jack Kirby would have approved of shrinking alien cities and stealing them to add to his collection and increase his knowledge base. In many ways, Brainiac should've been a Fantastic Four villain all along.