This question already has an answer here:
Yesterday, the the DeepWeb.SE proposal went into private beta. I knew this because I got the following notification:
private beta invitation This proposal has entered private beta. Click here to join.
So I visited the site, created my account there and started participating. However, I had not commited to the site or followed the proposal on area51. As you can see in my area51 profile, the Deep Web proposal doesn't show up in the Current Commitment or the Followed section.
According to all sources on the topic I found around here, the only way to access a private beta is having commited to the site prior to the beta or receiving an invitation from a commited member. I don't know any of the active participants of the Deep Web private beta, and I didn't get an invitation email either, but only the notification. So I doubt someone personally invited me.
So how did I get into that private beta?