But many people don’t want to have everything completely public
This isn't true at all. Most people do not care about privacy; those that do are an extreme minority. You (presumably) and I are part of that minority yet even we still comment here, in a public space. The issue with forums has never been about privacy because most are content with pseudonymity. It is a big mistake to think we need to cater to the extreme minority in the privacy space when tackling big issues that involve a majority who do not care.
You might enjoy some of Woo Min-ho's films. 'Drug King' (2018) is a biopic about a Korean drug lord in the '70s, while 'Inside Men' (2016) is a political thriller focusing on corruption in modern Korean society (criminal organisations influencing politicans and the judicial system). I'd also recommend Na Hong-jin's 'The Yellow Sea' (2010), which is about a Yanbian taxi driver who falls into the criminal underworld after racking up huge debts via his gambling addiction.