Here's the thing: we don't just write copy.
We write ABOUT copy.
We write about what makes headlines sell. We write about what to say on your website that won't instantly turn off half your customers. We write about copy that turns a me-too product from AliExpress into a high-priced sensation that people would sell their own mothers to own.
And we do this for ourselves. It keeps us sharp. It reminds us of the stuff we know - and it's a process of discovery, too. Write about what you do, and you learn things you never realise you knew.