It is pseudo proof-of-work.

Sometimes you simply have more to say, and then you break down the tweet into sub-tweets. Personally I found it cumbersome, having to decide where to break a paragraph to then go and create the next part to the reply.

When creating tweets however, it kind of automatically broke up the long message into parts: this was fine.

Just unfollow big-noters as you would decide not to use big-block blockchains if it bothers you too much...