Actually, I don't know where the "It's Not Allowed" is coming from.

It is allowed.  You may advertise your freestuff, wherever hosted, in the forum.  If you want to list it in the freestuff, and include a link to your site, you can.  If you add the HTML.  Yes, you have to upload the file here, also, but, you ARE allowed to link to your off-site freestuff.  

If you're not versed in HTML, here you go:

Your Text Here

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Knowledge is knowing a tomato is a fruit. Wisdom is not putting it into a fruit salad.