Sometimes users upload images to support their questions or answers. From imgur I came to know that Stack Exchange is paying for it.
This is a commercial Imgur installation for the Stack Exchange network
There is a possibility to misuse this feature. Uploading the image via a Stack Exchange site would allow them to use the hosting for their own (non-SE related) purposes.
My question is, how does Stack Exchange handle this, or does it simply not care?
As @Cole Johnson mentioned, do users get banned? How do they check it?
When I used to upload an image, I didn't find any reference that the image has been uploaded by a specific user.