Anti-SLAPP laws have the same problem as "regulation via judiciary" -- by the time the law becomes useful, the damage is already done. If you go bankrupt defending yourself, suing under a SLAPP law doesn't help. Also, the barrier for proving you shouldn't be SLAPPed is far lower than the already low barrier for civil damages, so there's some question as to whether this even solves the problem.

Our civil justice system needs to be cheaper and more accessible. It shouldn't be possible to wage economic war on a company or individual via the judiciary.