Stay around. Look what the site has to offer. Join in on discussions. kantos is correct in that you'll likely get to post much earlier (hopefully not by sheer volume), but it comes with a caveat of not seeing this place solely as a promotion platform for your movement-to-be. Or, to put it in other words: we are inviting you to join our society.
Sharing isn't about agreeing, but more about finding a point as interesting. At least that's a rule for me, and it seems it strikes true with many others. Look around comments from users like kantos, kleinbl00, rd95 or veen (top of my head): surprisingly often I don't even agree with their points, but it ends up entertaining or citing an interesting article. Or making me think about something from an entirely different angle. That's why I want to share it with others.
- Tip about website design: Don't put goals after something like "Before reading further one must declare zirself as an inviter." I read those, but that's because I scarcely agree to anything without due research. Plus it's one of those honour-based safety guards, not unlike "are you 18?" gatekeeper.
- Tip about website architecture: If you don't need it (and it doesn't look like you do), uninstall Wordpress. Seriously, it's at best a nuisance to work around and a security risk at worst.