EDIT: I'm backing up ALL my claims (how Nintendo is treating 3rd parties shitty and the cancelled games) with that I know what will happen at e3 during Sonys presentation, but since I can't tell you what games will be announcened I will simply tell you that there will be megatons at this years e3. We will see and old friend return to playstation, we will get a remake that will blow people away and we will see a former exclusive xbox title cause meltdowns, AND PS4 will get a BIG online service that no one has seen coming. If at least half of these predictions come true it should prove that I know a thing or two of what is going on within the industry, and thus prove that I know what I'm alking about in the OP.
You know, it's funny, but your edit actually makes me less inclined to believe you.
Multiple reasons. Let's start with your choice of words in a few spots. "Megatons" and "meltdowns" are a bit of an issue (as is "shitty"), but the real word that jumps out at me is "predictions".
Then there's the attitude - talking about how, if certain claims come true, it'll somehow prove that you're not making it up. Never mind that more than half of your "predictions" are pretty much what everyone expects anyway, that one of your predictions is "a series that was exclusive going multiplatform", and that somehow the fact that the online service will be "BIG" is meant to somehow be convincing in any way.
But more than anything else, it's the fact that you felt that you needed to prove yourself, and so you provided vague "predictions" of what would be shown at E3. You could have gotten some piece of information that would be cryptic now, but absolutely clear once it was announced (not something vague, but something specific, like some word in a game title, or something like that), or you could have simply said that you couldn't prove the validity without breaking trust, and left it at that.
Neither would be particularly convincing, but they wouldn't have made me less trusting of your claims compared with complete silence on the question of trustworthiness.
Beyond that, in combination with your actual content, it rings of third-hand claims. Lies almost always build themselves around truths that can be found easily - the rumours of Wii U game cancellations had been swirling for the last couple of weeks already. Note that I'm not actually accusing you of lying - it's not a lie if you believe it to be true, and I can entirely believe that you were told it and passed it on.
Oh, and one last thing - even if you had a lot of information about what was happening regarding the PS4, I cannot see any reason to think that this would in any way prove that what you say regarding the Wii U is accurate - knowing someone connected to Sony doesn't give you information about Nintendo, for instance.
So, yeah, like I said, your edit makes me less inclined to believe you.