The WhatsApp group is where troops live today, and it’s genuinely great for the last-minute weather call — keep it. It just can’t collect a document, hold a gear list still, or protect anyone’s phone number.
Discord is prohibited outright by many councils and charters, and the optics of a minors’ group on a gaming platform end the conversation before features matter.
Slack asks volunteer parents to make a work account for their kid’s troop, priced per head. Nobody does it twice.