Twitter announced today they will make it easier to chain tweets together in the official app. John Gruber summarizes the pro-tweetstorm argument on Daring Fireball:
This is a good idea. People are creating threads without official support, so true support can only make it better.
The problem is that Twitter threads take the place of blog posts. Most people won’t think to switch to their blog instead of firing off a series of tweets, but some will. Promoting Twitter threads to such a prominent place in the UI will encourage more people to create Twitter threads. It will lead to more content in Twitter and less on the open web.
Micro.blog takes a different approach. When you type over 280 characters, instead of offering to split it into multiple posts in a thread, it reveals a title field and lets you turn it into a full blog post. I feel really good about this solution because the UI actively tries to make the web a little better instead of worse.