Do you get paid for adding solutions on Stack Overflow?

I’m a community elected moderator. As far as I know, no one has ever been paid by Stack Overflow to write answers (unless they’re employees who were writing answers in their down-time). As a strong answerer myself, I think, perhaps, maybe they should…

However, some companies use Stack Overflow as part of their support model. See: Can I support my product on this site? - Help Center

So when their employees answer questions about their technology, you could say that they do get paid for writing answers.

No. The idea is free knowledge sharing.