Ask HN: What's going on with socket.io slack channel?

Anyone know what's going on with socket.io Slack channel?

Looks like no one has been able to join since months ago, and no one's been addressing what's going on: https://twitter.com/search?f=tweets&vertical=default&q=socketio%20slack&src=typd

As someone thinking about setting up a slack channel for an open source project myself, I am worried that this is one of those "Slack blocked us from inviting more users because they only want small teams".

Would appreciate it if someone could share at least what's going on.