There are countless usecases for redirects. A few examples of the top of my head: when urls have changed, when a resource/entity has been deleted, when you

There are countless usecases for redirects. A few examples of the top of my head: when urls have changed, when a resource/entity has been deleted, when you wish to provide a unified entrypoint that sends users to another url so that you can easily change the redirection target in the future (i.e. redirecting a / to a /entities, so youre but blocking the / path if you want to add a homepage/landing page later) I don't think I'd help with posts though. They do indeed usually send back a redirect - but the post is likely still in the history unless the website send it as AJAX/without a history entry (basically via JS fetch() instead of form action=)