Are you serious about not being able to share content outside the browser and folks having to download Blackbird to see it? If so, that goes completely against what the internet is about.

I have TwitterFeed check my Flickr feed. It will send two photos at most no matter how many I have uploaded. There are some that seem to load random feeds into TwitterFeed and I have unfollowed them. Why do I want to read an RSS feed of the comments on your blog? Or random iPhone feeds? There are some good uses for it - look at @dcalerts. Otherwise, it's something that should be used in moderation.