Engagement. The majority of the people that such a blog would be shared with won't read it because it requires clicking an extra link. Tweets can be read in-line. Also, tweets in a tweet thread can be commented on specifically rather than on the blog post entirely.
Also, tweets in a tweet thread can be commented on specifically rather than on the blog post entirely
So it's like a college lecture where the professor stops after each sentence and has to answer questions from the audience. Pretty much the opposite of communication.
Not really. The tweeter in this case isn't stopping between each tweet to address comments. It is asynchronous versus the synchronous example you gave.
