You have to copy and paste the URL of the comic in the reply box for it to show up. The reason this one didn't is because you used the URL of your home page, which doesn't contain that particular comic's ID number.
The comic isn't funny but my first one wasn't either. Some might even say none of them are. Just keep playing around with it and try to make your comics funnier.
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Legend, oh legend, the third wheel legend...always in the way.