I have no inside information, haven’t seen any messages, etc.
I picked those two as examples because the former would be a not unreasonable conversation to be had.
“hey, so and so wasted my time by not disclosing this potential tax fraud, watch yourself if he reaches out to you” isn’t a surprising conversation, nor is it sharing anything protected.
“Hey, here is some detailed personal information because i don’t like this guy” is a hugely different thing and very much inappropriate.