Im sure there is a lot of factors you coukd use to determine who is able to join an event que. The thing is you have to be carefull with that so there is no way players can claim that there was favortisim involved by the admins choosing who gets in to the event. Theres all ready enough complaints/drama by players about getting cheated out of a hat by admins. Just leave it be its fine as is.

I agree with Honeybadger they used a lot of the same hints and most where to easy. They needed to be more inventive and vague with thier clues