More power to them. As I understand it the protest was initially organized by Adbusters. This is partial list of items they are hoping will be adressed.

Its web site statement said: "The one thing we all have in common is that We Are The 99% that will no longer tolerate the greed and corruption of the 1%." Saying "I am sick and tired of being sick and tired," civil rights activist Fannie Lou Hamer's epitaph said it her way.

Suggested ideas include: revoking corporate personhood;
reinstating Glass-Steagall, decoupling commercial from investment banks and insurers, among other provisions to curb speculation;
imposing a Tobin tax on large financial transactions;
making corporations and rich Americans pay their fair share;
demanding Obama establish an "American Democracy Reform Commission" to end "monied corruption in Washington;"
in other words, get money out of politics; creating a similar commission for banking to assure for starters too-big-to-fail banks don't exist;

They all seem like reasonable items to me, though it seems like others have joined in the protest just on general principals rather than specifics.