What specifically did NyaseNya say would be in?
I'll compile a quick history of her posts that are relevant to her leaks.
First, she mentioned Sonic's update date [post=3006711]here[/post]. [post=3006780]Here[/post] she mentioned that it was originally intended to be announced near the release, but got moved back. [post=3006832]Here[/post] she claimed she wasn't aware of the conference going on that day, just about Sonic's Dojo update. And [post=3006855]here[/post] she made her first comment about Olimar possibly being in. Slightly less interesting, but she also claimed there had been some major complaints about Snake's use of a landmine [post=3006888]here[/post]. This is all she said before Sonic's Dojo update.
Oddly, she has a topic about Mario Kart Wii [post=3025319]here[/post] with some supposed inside info. Don't know if whether she was correct about that or not is known yet, since I'm not a Mario Kart fan.
[post=3025640]Here[/post] she made claims about changes Peach's model had undergone throughout the development process.
[post=3025762]Here[/post] she confirms Captain Olimar.
[post=3171703]Here[/post] she claims Brawl will use a dual-layer disc, and that Europe won't get the game until at least April.
[post=3294985]Here[/post] is her character leak thread. The first post was edited by Gimpy, so the original is no longer there, but from the comments in it you can tell her claims were that there are 35 characters, Game & Watch, Toon Link (WW-style), Ness, and Captain Olimar are in, Olimar has a Pikmin whip-like move, Mega Man is out, and Ridley is probably only a Subspace boss. This is when she started getting a lot of hate.
[post=3431554]And here[/post] is when she made her claim about the second delay, which we've just learned she was right about.
Zevox