Hi! An official announcement from Zach Latta has been made in the Hack Club Slack.
We're moving to Mattermost now and we're trying to export all messages, DMs, etc.
Disclaimer: I am a member of Hack Club's Slack and NOT a working personnel there.
Make sure to warn others of Slack/Salesforce, customers need to have a voice and this behavior must become prohibitly expensive for Salesforce.