Could you just put it right into the text box and see if it works?
Nah, it'll just edit it out. For instance, the Katawa Shoujo picture in my Breath of Death blog had a joke on the old site that won't work here; clicking it there would bring up this, whereas here, it's just the damn image.
Really wish they'd bring the code button back, though. It makes posting my blogs so much less of a hassle (Word works, but it could work better for what I want).
Well. I have figured out what happened to the GoT Season 3 Thread. I was trying to get the clock to work, and I used Full Edit, not knowing that it defaults the thread back to General Discussion. Asked mods to help move it back.