With over 150 Drupal sites, the European Commission is a big Drupal user, and has a large internal Drupal community. The European Commission set aside 89,000€ (or roughly $100,000 USD) for a Drupal bug bounty.
The standard version of the platform comes with the most common suggested components. The standard version is recommended for the majority of YMCAs. Once you have the Open Y platform, you can add any additional components you choose.