Not the judge being personally biased, per se, but in a frivolous lawsuit the defendant is made a victim of otherwise unnecessary legal fees and process, which

Not the judge being personally biased, per se, but in a frivolous lawsuit the defendant is made a victim of otherwise unnecessary legal fees and process, which is a bias in the system. It seems more fair that in a case where there's a high chance the lawsuit is frivolous and the plaintiff party can reasonably part with the money for a time, putting in a provision like this helps even things a bit.