SLAPP suits come from massive sources of capital which have enough counsel either on retainer or simply have enough money that they don't miss ~$50k on a whim to get back at someone who they think besmirched them that one time. That doesn't really apply to US service members.
SLAPP suits are filed by the defendant, ie the person who said the thing.
They're a response to being sued. If a lawsuit is clearly bogus, you can get it thrown out extremely quickly and the other side usually has to pay your attorneys.
Not all states have them and not all states that have them, have good ones.
> Strategic lawsuits against public participation, or strategic litigation against public participation, are lawsuits intended to censor, intimidate, and silence critics by burdening them with the cost of a legal defense until they abandon their criticism or opposition.
Anti-SLAPP suits are filed by the person who said the thing. And yes some states have good anti-slapp protections but that means the rest of Americans don’t enjoy that freedom.