When I was young, I witnessed the silent treatment amongst some relatives. It was a painful way to respond to conflict, yet at times, it's better to be silent than to talk since people need time to process, collect their thoughts, deescalate and more.
Since that early life experience, I've read a lot about the silent treatment also known as stonewalling. It is definitely a painful response to conflict and not one that is readily supported in the many articles I read. Though talkers and reactors like me could effectively employ wait time when it comes to struggle, conflict, and problems, in general it's best to use words effectively to meet the struggles we face.
I remember one time a few years ago when I let a situation fester, and finally when I spoke about it, the words I used were not effective. Looking back, I would have been much better off if I had simply said, I'm struggling with this situation, and I simply don't know what to do. That would have opened the doors to good conflict resolution, empathy, and resolve.
Using words effectively is a great skill. Using quiet and reflection to get us to a place of understanding is similarly effective. However, for the most part, prolonged silence or stonewalling another person is not effective, and can be abusive when used excessively.
Many were not provided with early examples of effective language and actions related to supportive, strong relationships. This is why many look for avenues to learn these social skills as they grow older in order to build and maintain the positive relationships possible. Onward.