There is currently not a way within Confluence Cloud to hide the "Created by" text.
It has been suggested in a feature request that you're welcome to vote on and watch in order to see if there is any progress on this request:
Let us know if you have any questions about that.
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Hi Community! me again 🙂 If you’re a marketing team using Confluence, we want to hear your story! How did you start using Confluence? What are your use cases? What have been some of the benefits?...
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