Invitation (this site) is an ad-free, independent, community. It lets people organize and share their referral codes for various products. We also happen to have a referral program at Invitation to reward users who invite others. We know it's very meta.
Personal referral links are featured on user profiles by default, so there isn't really a point in posting your Invitation referral link on Invitation itself.
It's time to get your Invitation.codes account too 😎