Hang them high up in the trees or bury them underground until they comply or die. Everyone is afraid of at least one of those things! It's a real motivator.
The fungal forest that makes up Anura needs to be fed, too. Often times, in groups of them, we pick one to feed to a mushroom tree and let the others sit back and watch as they're consumed. The fungi work surprisingly fast.
No rest for the wicked... that's the typical saying. I string the worst up in cages in my realm and hit them while walking by. It's a fun noise, all the chain jingles and screaming!
Why let bodies go to waste just sitting there or hanging around? Heretics make great test subjects for new pathogens. There's quite a few different flavors of lethal on my shelves, but I have also been wanting to work with debilitating, crippling, but ultimately not deadly diseases. Suffering is half the fun with these. But if they ask nicely enough and promise not to misbehave, I may relieve them of their ailment early.
Humiliation is a great motivator for everything. Though Silk Cradle's larger settlements can be spread out, they house many dissenters. They're locked up in lines to be laughed at and scorned for their silly ideas. They may still try to hold debates with those around them, but they will eventually see the error of their ways. And for the individuals that are too stubborn to change, I hope they can fight for the privilege to live.