It isn't. Being paranoid about lawsuits against some personal blog shows a lack of legal sophistication and this type of sensationalism promotes an irrational fear of being somehow financially vulnerable to almost any legal predation. That's simply not how the US system works. There have to be actual damages for a court case to go forward to the worst-case expensive end (depending on what most people consider "crippling"). Courts aren't pernicious and are very sensitive to anyone attempting to waste court time on exploitation (except in Texas courts supporting patent trolling, obv).
Any judge would have this resolved by giving the parties a 15 minute sidebar to come to an actionable resolution or sanction both sides in some motivating manner. The US legal system has a vested interest in not taking everything to a long drawn out fight, due to limited court time, even if it is presented differently in media (or the comments in these threads, which are laughable).