@Daojoan Posting your content to the microblog rather than just sharing a link has the advantage that it's immediately accessible and readable without there being an extra clock in the way
Posting your content as a thread rather than one long post has the advantage that individual parts of the argument can be replied to and shared, which is more specific and focused than replying to the whole thing and then saying "I disagree with paragraph 4"
@davoloid @Daojoan I don't know if any current Mastodon clients provide tools for breaking up a longer piece of text into multiple toots, but there used to be loads for Twitter.
e.g. https://threadcreator.com/tools/twitter-thread-maker