This is appealing to me too. I was recently surprised to discover that there was no simple product to maintain a public FAQ and/or knowledge base. I'm using one of the lowest tiers of Zendesk and I'm not happy, but I don't feel the appeal to upgrade to another tier either.

My needs:

Template system for a seamless integration with my site's aspect. Custom domain name support. SSL WYSIWYG or MarkDown editor. Option to add my analytics (i.e. to include my own JS on my pages), or some analytics offered by you.

I'll be more than happy to pay for this, if you keep it simple :)