there's quite a few people that have tried to post things on here lately and haven't been able to -- (several sites won't work - BBC for one, many others)
here's how to fix it
some sites just won't post using the old HC page doing the upload file trick -
so - the 'easy' way to post those links is to go to the new site and make your post from there - when you want to post the link you use the hotlink button -- this one
then, post it
because you are an old fart and resistant to change - like I am - you can then later zip back to the bottom of the page and return to the dinosaur HC - the old one - and, happily read and post etc.
