I use .home for the Windows domain/internal hosts and .online for my external domain as it was cheap, and the name I wanted was available.
To access self hosted stuff with working SSL certs,.I set up split DNS. On the internal DNS sever, I have a forward lookup zone for the .online domain with static A records for .online and all the subdomains pointing at the internal address of a caddy reverse proxy.
Just like most things on reddit, overblown.... obviously we all have random failures. I have a Dell R510 with 12x4TB disks. I had one develop bad sectors and another have some kind of issue that was cause it to make the array lock up. I think it was an issue with its board on the drive.
At the same time I have another R510 that is my cold backup with 12x2TB disks... no problems. Almost all my disks are used pulled from the company I used to work for..... don't give a shit.
If you backup or have multiple copies of stuff, who cares if drives die.