Originally posted by Astner
It's not about who called it first, but rather who was the first one to call it after reliable evidence had been put out.Obito and Tobi containing the same four letters is not enough of a reason to call it. There were Obito theories floating around the moment he sat on the rock flipping Sasori's ring like a coin.
Same hair style, the eye on the opposite side than Kakashi's, the kamui-like Jutsu and the overall "I'm the big baddie but I'm not all that overpowered" feeling that comes from Tobi are enough justification quite frankly, I wonder what everyone else was expecting. It is not a big reveal to be honest, imo guessing the how would hold more merit than guessing the who
This kind of reminds me as of how a fan discovered who was the Homunculus Pride in FMA, now that was a nice detail, focusing on speech patterns of different characters was a solid argument; if one as solid can be done here on Naruto I'd love to hear it, but most late hints have been a bit heavy handed.