Dani, thanks for doing this and I like your idea of building an online community working on interesting side projects in AI. I would apply this batch and recommend it to other researchers who are working on cool stuff to apply now, "only" if you take our feedback, which you asked for, into consideration which are:

1-Delete the personality questionnaire and the brain teaser. Keep it simple as you promised above "in minutes". Seems like everyone here hates it, including me.

2-Either in the application process or on your website, state how would you protect my idea. Ideas become things. In the application, I will give you my full idea that I am working on. You might get inspired by it, and build it your own. If you are really trying to attract top-notch side project, you need to do this.