Currently you can allow hotlinking to certain websites on most CPanel's. For example, I wanted to allow files being hosted from one of my servers, so I set hotlinking allowed to wdfiles.com, and icondeposit.com. Thus letting icondeposit and my sites at wikidot host files from that server (with restrictions of course).

I wish that you can do this via Wikidot's admin panel. This way my clients websites hosting files from icondeposit won't have their websites messed up and running slow.