Everyone is "right" in this topic, let me explain:
First, Andrew, aka @Squid was given the "ok" by me to publicize the BOINC and Folding@home plugins for purpose of making people aware of their existence, please get off his back for this. CA is an awesome piece of software and @Squid has curated both it and the appfeed with the utmost care and respect.
Honestly, I've been personally swamped with many things and didn't think much of it, other than thinking it was a great idea because a lot of people feel helpless and this is a tangible - albeit small - thing they can do in this time we are living through now. We have users all over the world including areas severely affected and we have received messages of appreciation for bringing attention to this.
That said, it has been our policy since the beginning:
We do not send unsolicited e-mail to anyone, nor do we authorize anyone else to do so on our behalf. Exception: we may send email notifications of critical security updates.
In hindsight I see this was not right to send the notification email and we'll see to it that it doesn't happen again.
Finally I don't see any real purpose in re-opening this topic. I think all's been said that needs to be said.