I don't but that's not really my point -- the poll itself isn't a problem, it's the lack of multiple polls that cautions me to draw concrete conclusions from it as rayiner did. 140 people out of 30 million is about 10% margin of error. Add sample bias to that and this poll alone is nowhere near conclusive, although as I indicated it's still useful to reflect on the issue.
Do you have a better poll that shows different numbers?