I was planning to work on this last weekend, but I didn't get to it (researching our new bulk email capabilities). But we have in the recent past emailed challenge info, newsletters etc to the entire email list. So we do communicate with the largest possible list of team members. There are 15k email addresses in the list and about 12k that have not opted out (so far) after being emailed. We get anywhere from 10-100 opt out requests or bounces from each mailing.
The email list has always been a sensitive topic and restricted to the admins, and the team has to also be wary about becoming annoying (spam) with their email communications. We are due for an email blast soon to promote the final PG challenge.
I love your passion and willingness to help both publicly and privately, please don't hesitate to raise questions you or the rest of the team want answered, we will do our best to be responsive but sometimes we miss things.