API: tags should exist independently from articles

[jangernert]

Currently tags are just an array of strings attached to an article.

• They have no id.
• There is no way to create a new tag without assigning it to an article. (this one is pretty common for most APIs Ive seen)
• There is no way to rename a tag other than replacing the tag string for all tagged articles.
• Tagging an article requires to send the complete list of all tags the article should have instead of just a single tag that should be added or removed.

Imo tags should behave like categories do for feeds just for articles (except that an article can have multiple tags of course). This would bring tags more in line with APIs of other feed services.

[TylerJ1ger]

Is it possible to keep the labeled article? I found that even when an article was labeled, it would be deleted after 1–2 days. Once all articles were deleted automatically, this label would disappear too.