How do you make or get BSV so I can post here?

You can buy small quantities of BSV through the Relay wallet, if you need some posting money. There’s plenty of other ways to earn it, too.

For example:

/pay @10806 $1

Pictures cost more and then it depends on how much text you write. If you put up good content you will have likes and interactions and in this way you can make some. Even by people sending you /pay @10806 $0.2