Umm, isnt the rotation of the galaxy in question subject to the viewer's point of view? That is if we see the galaxy supposedly looking like it is an anticlockwise spiral, won't it be a clockwise spiral if viewed from the
other side?
I suppose that everything by default must be referenced as seen from Earth, but in this case, what point of reference is valid? The fact that it is related to interpretation and not fixed to a unbiased or central reference point must mean that the statistical data is therefore inconclusive?
I saw that observation in the UK Sky At Night Magazine's article on Galaxy Zoo and thought it was also quite funny as to how most of the errors generated in galaxy selection by the users were created by human laziness in as much as it was easier to select the first entry in the drop down box than actually select the correct selection for the galaxy being observed. All that time and effort potentially undone by the poor slobs who drove it.
Cheers
Chris