Use `tags` rather than `categories` for posts?

[peterdesmet]

Note that site.tags and site.categories will only list tags and categories associated with posts, not pages. But a page with categories or tags will still expose that information through page.tags or even post.tags and it will thus display on a card.

categories come with more possibilities (see https://jekyllrb.com/docs/posts/#tags-and-categories), e.g. it can be part of a post URL. I'm therefore wondering if the items displayed on cards should be tags rather than categories, so users can set categories without affecting what is displayed on the cards.

[peterdesmet]

This would be too much of a breaking change, so I'll opt to keep categories.