Michael Giberson actually responded saying that the article was pretty much a run-of-the mill article, and there was nothing to respond to and that the article was not even negative. Chris listed a long list of argument why the article was negative.
OK, so is it positive or negative? Well, let the crowd decide. I posted the article on Mechanical Turk, asking 100 Turkers to read the article and rate it in a scale from 0 (most negative) to 10 (most positive) about the sentiment of the article towards prediction markets.
Here are the results:
Well, the average was a 5.8/10, meaning that the average detected sentiment was pretty much neutral with some hints on positivity.
The lesson: never let your own judgment drive your decisions. Measure and analyze the data!
Sorry Chris! Too much drama for nothing!