Me, I prefer to see data. Fortunately, there are a number of studies coming out about patent trolls. Unfortunately, there is no clear consensus. Also, things like the impact of baseless demand letters simply cannot be studied because they cannot be tracked and there is no data. This will hopefully will change soon.
But I'd much rather prefer analytical study over uninformed vitriol. Ars Techica is usually good, but not when it comes to patent matters. This is the same blog that painted CSIRO, a well known Australian research lab, as a patent troll because they claimed to invent WiFi and sued manufacturers over it. The comments on that article (many from posters down under, naturally) kept calling out Ars' incorrect rewriting of history, but they would not back down. I wouldn't want my news from somebody who won't accept the facts because they don't agree with their biases.