So I have to admit that I have no idea what this is, or what it really means, or why I should join it. I found something that suggests Mastodon is a Twitter alternative. . . . I only use my Twitter to push posts to anyway. Is Mastodon going to be integrated with Medium somehow? My 15 year old read me a funny Tweet about how incomprehensible every article about Mastodon comes across - seems legit. An ecosystem?? Really???