@Jugi There's an algorithm, but it is a simple and transparent one: your followers see all your posts (unless they've muted you or muted a hashtag you included). If you use a hashtag, people who follow that hashtag see your post. If someone boosts your post, the followers of that someone see your post (and if that someone is @lisamelton a whole lot of people see it). There's nothing else that artificially boosts or limits your engagement. The users, not the owners, choose what gets seen.