Ok I'm purposely not going to get into some of the stuff that I would like to address thats been said in here, because well, basically it's not constructive.

What it comes down to is, who does it hurt if the site keeps allowing new people to join and participate?

It's a brand new site, it's only been even publically known about for something like 2 weeks. Maybe if this keeps going in 2013, when people have had a whole year to discover Weekly Beats exists it will get closed down to new participants a week in til January.

Maybe it will happen in a few months if the site really takes off. For now allowing people to take part later in the piece is IMHO only going to make it a tighter community.... Seems to me people like to introduce their friends to their online viewing (or participating) habits. It seems to make them feel more like they're part of something.

Isn't the point of this people choosing to challenge THEMSELVES? The site IMO just gives them an opportunity to do it with like minded people. If they end up doing 26 songs in six months, because they weren't fortunate enough to find out this was happening as early as we all did, good for them. I personally (and I'm not actively participating so take it with a grain of salt) think that saying you can't sign up because you were late makes the site a little elitist, which kind of goes against the spirit of community that was intended.