The giant nosed character shown in the twitter preview for the audiblegate.com site brings to mind some uncomfortable and hopefully unintentional stereotypes.
I actually came here to say this. I'm quite sure it's unintentional, and was just someone grabbing some clip art which was itself perhaps not fully thought through.
I'm not going to be leading the mob that makes a big deal out of this, because I don't care. But combining a huge nose and a bag of money in your splash image is not going to serve your cause in any useful way.
When stereotypes make people uncomfortable, it's almost always a class of people viewed as commonly persecuted and usually a heavily US-influenced culture pointing it out. As the poster does not mention skin colour, we can assume it is white (given the US-centric context). As such, it has to be a Jewish stereotype. I am basing this on the fact that the discrimination that makes US citizens uncomfortable is generally against jews or black people. There is a certain segment that thinks discrimination against white people is an issue, but there are no dogwhistles to indicate that (and I'd assume skin colour would be emphasised more).