As a general rule of thumb, I’m fairly conservative about adding media to somebody else’s post.
I feel like media draws attention more than text (look at teh shiny), so I don’t want to add it unless it adds clear and indisputable value to the post. Usually this means my media edits are fairly minor.
Two examples spring to mind:
- If the OP clearly knows about the media and wants to reference it, but hasn’t found/inserted the item in question.
If the OP clearly knows about the media and wants to reference it, but hasn’t found/inserted the item in question.
Say, if the OP makes reference to a video clip, but can’t find a link themselves. Adding a YouTube link/embed to the video in question would be fine. This is akin to somebody saying “I can’t find a quote now” in a book answer, and somebody else adding the appropriate quote on their behalf.
Improving the quality of existing media.
For example, replacing screen grabs from a back-of-the-cinema video with one from the DVD release.
Say, if the OP makes reference to a video clip, but can’t find a link themselves. Adding a YouTube link/embed to the video in question would be fine. This is akin to somebody saying “I can’t find a quote now” in a book answer, and somebody else adding the appropriate quote on their behalf.
- Improving the quality of existing media.
For example, replacing screen grabs from a back-of-the-cinema video with one from the DVD release.
In both cases, the change to the post is fairly minor, and I don’t think the OP could have much objection to the edit.
Otherwise, if it’s anything more substantial and I think it might be useful, then I usually leave it as a link in the comments. The OP can see it and add it if they wish, and other readers can find it, but it doesn’t change the original answer.