In the context of Hacker News readers (presumably startups looking for funding and with employees) there are many good reasons for setting up an LLC, including limiting liability if one of those employees gets sued, and limited contractual liability. However, the point I was getting at is that the LLC doesn't totally shield you from liability, a misconception that has brought a lot of trouble to people who played fast and loose with their conduct and ended up staring down the barrel of potential personal liability.
The core point is: don't try to "dodge" liability. Instead, take steps to reduce the likelihood of causing harm and get a good insurance policy.