I run my own blog and link to it with Twitter too. Why don't more people do it? It's more work to do so. Medium, Facebook, etc. actually do a fair amount of

I run my own blog and link to it with Twitter too. Why don't more people do it? It's more work to do so. Medium, Facebook, etc. actually do a fair amount of work for you, for better or worse. That is, they do provide value in exchange for what you give up. I see two kinds of people for which it make sense economically to own their own site: (1) Technical people like programmers. Because of their skills, the cost to owning a site is low. (2) Business owners. They can afford to pay a high price because it contributes to the business. That said, many small businesses choose to use Facebook or Squarespace as their presence. I guess with Squarespace you own the domain (?), but migrating out is still a pain. That probably accounts for 5% of people with a web presence... for the other 95%, getting the tools for free is apparently more important than owning the site.