Blogger's broken editor

Well, except for easily inserting and editing links and images, the WYSIWYG editor built into blogger is useless. It doesn't use paragraph (<p>) tags! What is Google thinking? As a result my paragraphs look awful next to headings. What a mess. So from now on I'm just composing posts largely in HTML mode. It's not too bad and at least it looks just like I expect it should.

Even worse, when you switch back to compose mode, it strips all the <p> back out! Yikes. Blogger is badly broken in this regard. Where can I post a bug report? Sadly with Google there is no customer interface, as we're not the customers; We're the product.