In the Titles & Metas section I can set
"noindex, follow"
to post types and taxonomies.
In the XML sitemaps section I can set
"exclude..."
to post ypes and taxonomies.
I can also set
"disable author/user sitemap".
To me this seems like three very overlapping functions. I don't know when to use one or the other.
So I am asking you. Under which circumstances do I want to you either "noindex, follow", "exclude..." or "disable..."?