If you're wondering what the #JohnMastodon thing is about...

...here you go. Captured by the Wayback Machine for you, as the author has since realised he'd misread the Join Mastodon account name. 😂

And thusly, the legend of John Mastodon is born.

@mikegalsworthy John Mastodon. Seven feet tall he was, with arms like tree trunks. His eyes were like steel: cold, hard. Had a shock of hair, red, like the fires of Hell.

@marcas @mikegalsworthy

That sounds a bit like John Wayne, apart from the red hair...