This is just common sense.
If you want to start a discussion you can write a blog post. It's not as beautiful as some of the new systems. But you're not locking your ideas in a place where they can't be part of any of the systems we've developed on the net for ideas to flow around. And if you don't use those systems we can't make them work better.
Start a blog on Tumblr or Wordpress.com, if you need to, or use the one you probably already have. Post a link to Twitter so we can see what you have to say. If people want to comment they can. It's the best system we have, until a better one comes along. And Branch is not it.
All they have to do is support feeds to gain parity with the blogging tools. If they do, we can re-evaluate. (Actually they have to support some APIs too, and trackback.)