Proceeding on to the products' entry. I've got customers who use styling in their product names:
Code:
<span style="font-family: Roboto;">#</span>Product Name
... which results in a preview display of that name as:
Code:
<span stylfont-family: Roboto;">#</span>Product Name
If it wasn't bad enough that the HTML is now displayed as (er) HTML, the processing has removed characters from the HTML itself! Clicking the "back" button from the preview keeps the malformed HTML.