Archive
Overview
An archive is a feature that stores digital content in a private state without deleting it, or the place where it's stored. The word comes from the Greek arkheion (a public records office), and it originally meant preserving historical records. On social media, it's used for a feature that hides a post from others while keeping it somewhere only you can access.
Instagram's archive feature is a typical example. When you archive a post, it disappears from the grid on your profile but stays in your archive folder. You can make it public again at any time. The difference from deleting is whether you can undo it.
Thinking about archiving in a question box
The idea of archiving your question box answers has to do with keeping your box going over time. You don't have to keep every past Q&A public. Answers whose context has changed over time, or answers that no longer match what you think now, are fine to make private.
However, some question box platforms don't have an archive feature and only give you two choices: public or deleted. In that case, one option is to run your own archive, for example by taking a screenshot before sharing an answer on social media or saving the text in a notes app. A good answer is an asset, and it would be a waste to throw it away.
Using archives strategically
An archive can also be a tool for "tidying up your past self." When you've run a question box for a long time, your early, clumsy answers may start to bother you. You can archive them and keep only the answers from after you've grown as public. This isn't vanity; it's an act of editing to give readers content that's valuable to them.
The reverse, regularly digging up old answers and sharing them again ("archive digging"), is also one technique for running your box. A good Q&A stays valuable even as time passes. New followers haven't seen your past answers, so sharing them again can sometimes create new engagement.