It's complicated if you have personal but identified channels and are also a somewhat public figure in the context of various communities, including companies and tech projects.

I guess my take is that if you want to have a truly personal blog or social media channels, it should be as anonymized as possible. (Which has pros and cons.) Certainly, there are a ton of things I wouldn't write on a public channel even if I weren't technically violating any company policy because they would bite me.

When I was an analyst, I would absolutely not write anything about a CxO that differed from what I would put in a research report.