Steve's hair is kind of curved upwards at the back. I don't think Hidans is. I only know Steve, not Hidan, so I dunno. But seriously, if you look at the normal ones, which are the way they are supposed to be like, they are nothing alike. Basically, that was such a stupid and baseless article.
I see where your going with that but there probably not gonna do anything about even tho, they might have copied but of they have the same personality then maybe but *shurgs*
I dont think its copyright infringment. Alot of manga and comicbook artist base their characters off other characters or people in real life. So Kishimoto sensei probably was inspired by Steve and went from there. Plus Kishimoto sensei also admits that alot of the inspiration for his Naruto characters comes from the Dragonball franchise created by Toriyama sensei. Its just inspiration. And with Hidan being a minor character I dont think it matters all that much. And because I mentioned comicbooks, if you look at Marvel's Ultimates i particular you'll see that Ironman looks like Johnny Depp and in other comics looks like Robert Downy Jr. even before RDJ dawned the red and gold suit. And Nick Fury (the black one) was made to look like Samuel L. Jackson before Jackson played him in the movies. And the original Nick Fury (the white one) was based off a supervisor in the Marvel Company.
So yeah there you go, alot more than you needed.
