I don't think sites like blogspot and medium says it is their content. Also, on the flip side I know that most of the self hosted sites dies in 5 years. You can say that it is their fault, but statistically speaking I would pretty much assume that the site will die. Thirdly, self hosting is not that easy. Even most developers do not have complete knowledge of things like server management, security, migration, networking etc. let alone other users.
> You can then switch providers, switch systems you use, or whatever you want to do.
Switching from say blogspot to medium is much more easier than even switching between two regions of AWS. Switching cloud provider is tough.
> Even most developers do not have complete knowledge of things like server management, security, migration, networking etc. let alone other users.
You don't need to! Managed Hosting is cheap as it can get!
2 €/month will get you 25 GB of web storage + 25 GB of mail storage, a .de domain (in my case at least), SSL through "Let's Encrypt", PHP, MySQL, 100 mailboxes, full control over the DNS records and whatnot else.
For 3 €/month you get three times of that.
Hosting is really dirt cheap and competent people will take care of all the messy stuff you don't know about.
As written further down, I'm currently going with netcup.de, which some consider kind of a "discount hoster", but it works for me.
You can also choose hetzner.de, which I think is somewhat of a "higher level" hoster and it's still pretty cheap: https://www.hetzner.de/webhosting
2 or 5 €/month is just worth it for me. Even if I could get a VPS for free, patching it, making sure everything runs just fine would take more time than it costs me with any (German) hoster who takes care of all the things I don't know about.
Right now I'm going with netcup.de for normal hosting, but I got some vServer cloud whateverthingies running with hetzner.de (they also have managed hosting for < 2 €/month) for a PiHole and tinkering.
I've been a happy customer of all-inkl.com for like 10 years or so, mainly switched to netcup because they were cheaper.
But all-inkl is great for business, 24/7 phone support and you talk to REAL people and technicians call you back for no extra cost and things like that.
> You can then switch providers, switch systems you use, or whatever you want to do.
Switching from say blogspot to medium is much more easier than even switching between two regions of AWS. Switching cloud provider is tough.