Hey, it's Langer! I didn't know you were an HNer.

What's the difference between your theoretical CMS and a WYSIWYG HTML editor? Something like Weebly or Google Sites? I'd think they already cover the "custom HTML" tactic pretty well. Beyond that the only thing you could possibly offer is custom graphic design, right? Or were you thinking pre-build templates in certain styles, the way iWeb offers for web design?