I found out in this question, that edits to the Help Center shall be posted in a meta. It also says "Make sure it's tagged help-center".
While posting such a suggestion, I could see there are both a help-center and a help-center-proposed tag, but I can't really see the difference.
So can anyone clarify what the difference is and when to use one or the other? Or are they redundant?
To post in the meta, it also needs a "core" tag, so I have selected discussion, since that seemed least "irrelevant" (it's not a bug, feature request or support either, just a small fix). So while talking about the help-center tags (for edit suggestions), I would also like to ask why it's necessary with an "extra" tag?