[noizejoy]

… and the article footer being constructed, so that it can become outdated would seem to imply a somewhat limited understanding of technology

[lolinder]

Do you take the time to make your blog footers dynamically check if your social media profiles still exist? I sure don't.

[noizejoy]

If the blog footer is intended to contain links to identity, I'd make that whole footer dynamic and then I'd just keep a single source for that.

Alternatively, arguably better: Keep a master domain for each identity and update social media accounts for that identity on a page in the master domain.