I just approved an edit made to an answer by someone other than the answer's author.

It added a piece of information to the answer's list of data. I happened to know the data was a correct addition. (In this case, the role of Captain Pike's First Officer to a list of characters Majel Barret has played in Star Trek.)

It had me wonder something I don't know, which is, are edits supposed to correct or add data to an answer?

  • 1
    For anybody else who’s curious, this is the edit in question. FWIW, I would probably have approved it as well (after Googling to verify it was correct; I’m not a Star Trek expert).
    – alexwlchan
    Feb 9 '16 at 8:03

Yes, adding information is fine (if it’s not too much at once).

Quoting from the Help Centre on editing:

When should I edit posts?

Any time you feel you can make the post better, and are inclined to do so. Editing is encouraged!

Some common reasons to edit are:

  • to fix grammatical or spelling mistakes
  • to clarify the meaning of a post without changing it
  • to correct minor mistakes or add addendums / updates as the post ages
  • to add related resources or hyperlinks

I think that adding a small amount of new information (such as in this example) falls squarely under the third item, and so is perfectly acceptable.

You have to be more careful with edits that add substantial content. In particular, be careful of running into this rejection reason:

This edit deviates from the original intent of the post. Even edits that must make drastic changes should strive to preserve the goals of the post's owner.

It’s harder to come up with a rule-of-thumb for this; I don’t think I’ve invoked this rejection reason very often (on SFF, at least).

  • Thanks. That's pretty clear. I guess it'd get grey again depending on the number of Majel Barret roles added. ;-)
    – Dronz
    Feb 9 '16 at 15:52

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