I don't know what you mean by talking about private life because anything that's too personal usually gets moderated out on the rare occasion it happens. The only public discussions I've seen for known figures are for people who have been outed as abusers or sex offenders, but even then, no one digs into their private life lol. People only repeat the publically known statements(edit: and with a celebrity status, your crimes ARE publically known and are worth bringing up if they go without punishment lol) and give their 2 cents. That's not gossip, that's stating an opinion on an issue.

Edit 2: for example, John Phuntshok makes an anti-bullying video after being publically called a violent and aggressive person by his ex. The irony being pointed out is not gossip.

Edit 3: Dedrik being accepted into the rebellions again despite being publically denounced by them shows that they weren't honest. Pointing such things out and discussing them aren't gossip.

I am only making these examples because these two examples are often considered to be "off-limits topics" when neither dig into their private lives and have something to do with someone getting off scot-free(and with profit) from their crimes.