If there's no clarity on either front soon, then Mastodon will keep burning fuel to achieve escape velocity only to find that it reached orbit by jettisoning all the passengers and much of the crew. At that point, the users that remain will be left with a highly-scalable social network that nobody wants to use b/c they moved onto something else.
*Or* servers will slow to a crawl, users will get fed up, and go somewhere else.