Still having this drama. Have recently tried using the Vidrio theme from One Little Designer, but even though theirs displays as one H1 and its in the body, I can not replicate it, and as yet they have not responded how to acheive the exact thing they are demonstrating. I have turned off the site title, but it just shows in the source as a blank. i then add a new one via Header X, which shows as you would expect, but HOW to get rid of the default site title blank entry??
Bing really does not like having an extra H1 bit of code, regardless of whether its a blank in between the H1 entry in the code. It just says severe error, 2 H1's etc.