You don't have to. You can do it, if you care about that sorts of things. But you definitely don't have to do it.

The only thing you have to do if you want to run a blog is to write. Everything else is defintiely not mandatory.

Nobody is going to read your syndicated blog link unless you tailor your content to the platform. There is a different way to present it to say LinkedIn, TikTok, HackerNews, IndieHackers, etc. People hate syndicated accounts, they bring very little value unless you’re already well established with popular ideas.

ChatGPT is a great litmus test here. Ask it to syndicate the main ideas of your content to a respective platform.

I’m not sure what you mean by “syndicated blog link” but my experience—and I’m aware it’s just a single data point—is that you don’t have to tailor your content.

You can do it, I’m not arguing against it.

And maybe that would result in more readers. I’m just saying it’s not mandatory and there are alternatives.