Welcome! This forum has a treasure trove of great info – Scouters helping Scouters! Just a heads up, though - all content, information, and opinions shared on this forum are those of the author, not the BSA.
I mentioned people ignoring the reminder messages. That’s not great. If they don’t, and enough people mark the message as spam instead, many other people will never see the reminders because Google will put them in the spam folder.
That is a great idea. Two “deep links” that all it exposes security wise is going or. It would be for that one person for that one activity. That would be awesome.
That screenshot seems to be something gmail is presenting and therefore not something the BSA can directly control. Any calendar reminder emails do have a link to unsubscribe at the bottom that the BSA implemented. Its a way to reduce reports directly to Google, which if they get too many can essentially blacklist all scoutbook emails.
Yes, that’s why an easy way to say “Not coming” would help with deliverability. Some other providers (Microsoft, for example) are supposed to be even more strict than Google if they see a lot of messages marked as spam.
Maybe the easiest thing to do here is to unsubscribe from all future emails from BSA which is not what anybody wants. The troop doesn’t want it, BSA doesn’t want it and almost certainly the parent doesn’t want it.
The other easy thing to do is push the “spam” button in your mail client.