My general rule of thumb is that all online polls are crap.
That being said, note that the study was a poll of people visiting the Occupy Wall Street website, not a poll of people at the protests.
The study document is here.
I posted a regular poll of 200 on-site protesters in a thread below.
And yes, it is amusing that the protestors demanding the wealth of those on the rungs of the ladder above them are finding out that there are a lot of people on the rungs underneath demanding (or just taking) theirs.
