I would see that eventuating if this allowed commenting via the embedding blog, thankfully it doesn't. I don't have the same issue with this that others do, but I remember TheNextWeb getting a bit of slack from commenters for embedding HN comments (although that was mixed amongst other comment platforms, and is a little different)
API-wise, http://api.ihackernews.com/ , http://hndroidapi.appspot.com/ or http://www.hnsearch.com/api didn't suit? [edit] what am I thinking, an API doesn't need an API...
Oh, and simplicity of this seems pretty nice!