I had a recent experience with family members which made me think about this thread and my previous comment.
I had imagined that my opinion here had been written more as "don't expect to get the result you plan on" when telling others about social anxiety, or when sharing anything. Upon review, I don't think I said it so bluntly. I'm glad I didn't say that, because I don't want to downplay the importance of self-expression and just honest communication.
Even if we don't get the result we expect, there is value in speaking up when we feel we need to. There is value in expressing our opinions or worries. Just to get it off our chests, even.
Perhaps this hit home for me over the last few weeks because I've had to deal with more family interactions, and like many families I could say that mine doesn't necessarily have the healthiest, open lines of communication. And we keep things bottled up. It's similar to keeping ourselves locked under social anxiety - not being able to be assertive or to express ourselves. Sooner or later that stuff does come our somewhere. It's healthy to work on expressing ourselves in positive, productive ways.
I wouldn't say I expressed myself very calmly or productive recently with my family. In fact, it was more of a meltdown and arguments, a lot of stress. Then it all came pouring out of me in one situation. Just a lot of anger and worry. But also from that came something good - that we were able to continue talking about things, to hear each other, and ultimately in this case I feel so glad we talked about our feelings, even if it started with a lot of emotion and frustration. We got that out there, and before that I was not even aware how much I was trying to keep in. So some benefit is naturally for the teller. We all have the right to be heard.