Yes, it's not truly an open beta but we're referring to it as that to greatly increase the number of testers while still restricting it to those who we feel will make quality testers.
Go ahead and sign up if you don't have ten posts. We've been letting in people with less. The posts are there to show us your dedication to the game so that when we have more sign-ups than open spots, we can give the keys to those who have already shown dedication rather than those who had never heard of the game before signing up. Having less than ten posts does not mean you cannot participate, it just means your chances are slimmer.
Better yet work out the kinks in your game before wasting peoples time with a game that doesn't exist/isn't playable.
If this is your attitude, we'd have to ask that you don't sign up for the beta. A beta is not a demo. We are not looking for players, we are looking for testers.
As such, the game is still unpolished and the whole reason we have a beta testing period is to get new players to tell us their thoughts and report bugs. No one should sign up for a beta expecting it to be polished or a realistic representation of the finished product.