Re: Another plothole?
I have to admit that the manga does seem to imply that this meeting took place after the original Akatsuki was formed, but it is simply not confirmed for reasons already stated. I still feel that its possible the organization was formed perhaps a year later, but again we can't confirm it either way.
Originally Posted by Gyakusetsu
As to the original topic on hand, its possible that Konan figured out that Tobi was lying on both parts, after he said it, and was simply shocked initially. She probably realized that for what he said to be true, he must have met and talked to Yahiko at least once before that first meeting. This would have obviously been illogical since Yahiko acted the way he did when Obito first met them, there was no way they met before. So again, I think we can still go either way whether Obito actually spurred Yahiko to form the organization or not, but when it comes to Konan's shock, it was likely because she was trying to comprehend a way for what Tobi stated to be true; then soon realized he had to be lying.
My only last concern to defend my earlier post is why Obito would flat out lie about this? We know he was only half lying about the Rinnegan, since Madara did actually give Nagato the Rinnegan, but if Yahiko actually did form Akatsuki, than this is a total lie on Obito's part. I would just like to believe that there is at least some truth to this statement as well, considering the level of truth to the Rinnegan statement and situation in which he stated these things.