It's extremely obvious that he just wanted to destroy it and get it out of the way, and buying the ship was the only way he could sink it, he's obviously having a lot of fun with it too, since his intention is to run it into the ground, so he can make sweeping impulsive moves and troll people all day, but it does imply that he has his own plans to make something in the near future that would have considered twitter a competitor, so it's a case of stay tuned and enjoy the dumpster fire circus show in the meantime