So, is there a way of unlocking the "secret area"? (other than referring a smurf account and play 3 matches)
I've been referring people to DGB for weeks and none of them really find it appealing enough to grant me access at all.

Is that area really worth it?

Edit: the "invitation by mail" make people think that it's somekind of scam/phishing/mailing list gathering scheme. Really hard to apply when one is trying to introduce people into the Cryptocurrencies community.