Looks like a really cool feature. But sadly I can't seem to get it to work even though I used your new cut and paste code method. I tried it by inserting in the edit mode of my original post and in a reply added to the post. It shows the code but no reaction. Should it happen instantly, or do I have to wait for a while before its active.
UPDATE: I got it working by using Chrome instead of Edge, and adding a blank line in front of the code.
Hey, we had a few hours of delay yesterday! Normally it should show up within 10 minutes or so!