We are thinking of pulling official Imgur support, since you’d need a Pro account and entirely different API mechanisms to guarantee your images are still there in a year or two years.
As long as images are getting at least 1 view per 6 months, they will stick around forever. If an image does not receive even 1 view in 6 months, it may be removed to make room for new images. Images on pro accounts will never be removed.
We would rather offer just S3 image hosting support for reliability, and let Imgur support come as a plugin at a later date. The current Imgur code we will leave in the vendor plugins folder as a todo if anyone wants to take it.
Any objections to this?