I do wish people wouldn't do Medium's dirty work for it. John Naughton (and plenty of others) said what a great couple of pieces Dave Eggars had written in Medium, without saying that the work wasn't available without signing up for Medium. That may not be the worst thing in the world, but is it too much to hope that Dave Eggars will syndicate his own work to a place where anyone can enjoy it? Maybe eventually it will be in a book I will happily pay for.
I haven't used it,but I think Jared Sinclair's Stormcrow app is intended to build a tweetstorm from z bigger chunk of text, so it would be reasonably easy to use either before or after writing the blog post, if that's what you're doing. There's clearly a difference between text and tweetstorm, though, and, like @nitin, i would prefer to promote something I had written with selected tweets.
This anguishing about comments has been going a good long while. Fun to uncover this one.