Should my colleagues criticize Sang and Huai in their WeChat Moments and send them back?

Yes, if you feel that you have been criticized, you can make insinuations back in the circle of friends, or directly attack. If you don't take the initiative to pick up the other person's words, you'll be scolded by yourself. No curse words were picked up. Or take the initiative to ask: Who are you scolding? Neither is appropriate, but passive. You conduct verbal confrontation according to your own logic and method, and be careful not to be led off the rhythm by him.