I recently posted an answer and wanted to include a figure I made for it. I ended up putting it on my institutional account, but I realize that this is not ideal (since the account will probably be closed in the next year). Is there a standard solution for this? Where should one place figure files for answers and questions for this site? The best place would be on the site itself since they would "live" exactly as long as the site does, which is of course the optimal timespan. But how to upload figures, and how to avoid spam?
We should probably have a good solution and guidelines for this so that images do not start going stale and the questions/answers that contain them, with them.
One solution I can think of is to have the website download the image and place it internally changing the link to point to the copy. This solution would mean that even if I link to an image on Wikipedia or some-such, and then the article changes, the image remains here (As it should) with no extra work.
BTW, there's a post over on StackExchange Meta regarding this exact issue. it is quite old already and I don't know if anything is happening about it...