Just wanted to add to this, there's no barrier to contributing as a non-staff member. On our Github project, you can confirm an issue, contribute discussion or submit a pull request if you have the skills. If not, feel free to contribute here. Contribute to discussions on feature topics, propose a new feature that no one has brought up before, chat about stuff in Off-Topic, show off your site in Showcase, develop an extension if you have the skills, or just show your support for Flarum.
We love seeing our community members take part wherever they can. We don't expect them to be superheroes, or that everyone walking through the door will become a staff member. You can just be a fan, and that's totally okay. Except for Toby, it's how we all started.