When you have a private conversation with someone, you get a lot more of the shading and subtlety of their experiences.
In a public forum, people are most likely to share things that are safe. In private, people are more likely to share their opinions, impressions, and half formed ideas; all of which can change, but all of which give you the necessary context to form your own opinions.
If you shared everything publicly, I'm pretty sure you'd come off as some sort of a crank, flake, misanthrope or worse... Especially given the unforgiving nature of Internet memory.
When you have a private conversation with someone, you get a lot more of the shading and subtlety of their experiences.
In a public forum, people are most likely to share things that are safe. In private, people are more likely to share their opinions, impressions, and half formed ideas; all of which can change, but all of which give you the necessary context to form your own opinions.
If you shared everything publicly, I'm pretty sure you'd come off as some sort of a crank, flake, misanthrope or worse... Especially given the unforgiving nature of Internet memory.