Thread:RandomDudeDude/@comment-26204029-20180214170927/@comment-5971784-20180214174602

I think it was primarily due to excessive spam. Originally, great similarities were still allowed, but only relevant ones, not superficial comparisons. If I remember correctly, it was said that most fictional characters have similarities to others and that stuff like that does not belong on the articles. Since then both Heroes and Villains started making blog posts with users adding similar heroes.