there's a preview post option. ...there's also a delete post option!
Thats it! too many people have been bitchin about my failed image link... i was thinking of renovating & updating my post but now i'm closing it for good
I'm aware of the preview option, i previewed it & it worked at the time
When I first saw your post I thought you were just directing people to check out 4chan in a sarcastic manner.
As far as previewing a post goes that won't help because if you've viewed the image already it will just take it from your browser cache, not attempt to connect to the external site.
Advice for everyone wanting to post an image hosted on another site - just use a hotlink checker, such as:
http://www.free-webhosts.com/hotlinking-checker.phpThough sometimes you still might need to clear your cache for that to work as well, depending on your browser/settings.