I blog publicly but also journal privately using git and vim. I have been on and off for about 5 years.
The raw thoughts rarely show the light of day, but sometimes I synthesize my journal entries as blog posts or HN comments. I refine my true self for the public. This saves me from letter downvotes sway what I believe.
By the time I post on HN I've already collected my thoughts in my other journals.
I do feel very disconnected from people these days.
It's been about a little over a year since moving my of my status updates to Mastodon from Twitter where I follow exactly one IRL friend from high school, a friend from two jobs ago, a person who found me randomly, and a customer for Remarkbox.
When I do post on Twitter it's often a link to my Mastodon post, or a link to my blog, or side project I'm working on.
It's sort of selfish but I only read tweets on my timeline up to the first ad, which is typically a scroll and a half on my phone.
In this way, I sort of use Twitter as a broadcast, like updating a RSS feed with something I'm proud of. I rarely digest the tweets others put on there. This seems selfish, but really it's not.