This is a terrible suggestion, please ignore it.

If people have found an effective way to communicate information, leave them the hell alone. I have too often seen people like Auronis decide to come in and manage something to be proper, and then destroy the communication.

The appropriate thing to do is to find a way to augment, without interfering, the channel to shore up any weaknesses.

Formal channels are often too formal - people don't want to look dumb, or get chastised for asking something incorrectly. Formal channels are intimidating, not welcoming.

The point is knowledge sharing, not "appropriate" knowledge sharing.

I love how the OP was like, "hey, we created this informal channel and communicated valuable info to the whole company", and then Auronis is like, "yeah, don't do that!"