Limit by date of registration is also not the right approach. In my example I will say that I do not like to talk, and prefer to do business, and therefore not registered before.
If you don't meet the requirements, you are not qualified. That's it!
Otherwise there are millions of fresh accounts who will participate.
I will have to agree, all though it is unfortunate that we will be denying these people entrance into the first months giveaway. It is still better that we protect the majority of users from scammers, rather than open our doors to scammers to protect a minority of users. If you create your account after July 1st you are welcome to enter into month 2 of the giveaway.
Hang on, creating multiple accounts for month 2...