Are the IMG tags disabled at the moment?
No, either they fixed it or you're not embedding it right. try using an img tag on your link. Put 'img' in brackets before the link and '/img' in brackets after your link... and see if it embeds it for you.
I'll use Massive Ego's character tax to test it here:
In my case? $5 USD, I bought 8 keys with my 400 HMC and got the outfit with the first key, the axe with the second and a HM gem with the third, if course the other 5 were crap, but why complain at that point?