The real precedent is obviously "don't piss of billionaires because they have many ways they can crush you".
I don't buy it. Courts routinely throw out frivolous suits, sometimes they even punish the people who start them.
Gawker lost because Gawker was wrong.
Yes Thiel has shakey ethics. Gawker violated the law AND ethics. Neither side was good in this case.
If you think court cases are too expensive PERIOD... Then start caring about Tort Reform.