I think people were more enthusiastic to join projects for artists when they were not on social media. Now, they just send them their wishes directly. It's sad when the projects involve works of art and turn out to be a beautiful collection of well wishes, but sadly that hardly ever works anymore. We're old school now.
It makes me sad too. We started doing birthday projects when Emma was 16, and this would have been our 14th year. I wish more people still wanted to do them but we have to post a bunch of times on twitter to get a response.
I will add a birthday post on the main website just after 12am UK time. You can write birthday wishes for Emma there in the comments. I will also invite people to send in graphics if they like and I will add those to the post. We will also have a post on facebook for people that like that platform.