Sounds like you're referring to something along the lines of anti-SLAPP laws: https://en.wikipedia.org/wiki/Strategic_lawsuit_against_public_participation https

Sounds like you're referring to something along the lines of anti-SLAPP laws: https://en.wikipedia.org/wiki/Strategic_lawsuit_against_public_participation https://en.wikipedia.org/wiki/Strategic_lawsuit_against_publ... There's also the notion of a "vexatious litigant": https://en.wikipedia.org/wiki/Vexatious_litigation https://en.wikipedia.org/wiki/Vexatious_litigation