[MaxfordAndSons]

Heh, this reminds me: at a former employer, the eng team communicated exclusively by IRC (when Slack was already a thing) specifically because the CTO had previously experienced his communications being picked apart and taken out of context when his old company had ended up in the scope of a congressional investigation. So that's one way around it...

[auiya]

If it's being logged, it's subject to the discovery process, regardless of what protocol you're using.