Publishing content on a global public network that is regularly indexed and archived seems like quite an intimidating space to share anything too personal. Maybe the pattern of presenting ourselves through pseudonymous and artificial identities is one way in which the medium has shaped the message.
I've felt one massive problem with most social media is that they are single-threaded and globally public by default, so every interaction turns into a public performance. Compare that with a small web forum, where there was a small barrier to entry, but a larger barrier to virality. People recognise the regulars, and the mods are in conversation with the community, and you tended to get more human interactions between people.
This is a great point and a huge feature provided by major social media platforms. They have built-in access control that is consistent across profiles.
I haven't seen a compelling offering for providing this on a personal website, especially if you want to express different things to different people.
Publishing content on a global public network that is regularly indexed and archived seems like quite an intimidating space to share anything too personal. Maybe the pattern of presenting ourselves through pseudonymous and artificial identities is one way in which the medium has shaped the message.