Board Thread:Support Requests - Getting Technical/@comment-24028110-20130701171929/@comment-1158325-20130702044239

You can't use them via the associated text, no. You can paste the full URL and it will be shown as long as the site it's on is on MediaWiki:External image whitelist (on your wiki). Or you could upload them to your local wiki and use them with regular image syntax. (In that case, it might be handy to name them consistently and create a template for displaying them. But maybe not :P.)