At rest encryption helps if your threat model includes someone stealing your server. Junkies probably aren’t going to go through your files, but would you rather worry?
Similarly, offsite backup for if your server is stolen / house burns down /you accidentally rm -rf everything
well, I also have my passport, visa, house documents and what not. I don't lock them up in a safe. So, yeah, all this really depends on how much you worry about robbery. Atleast , where I live, there is practically 0 robbery.
I used to think like that too but I think it’s flawed. By that logic you should withdraw all your money and pile it up next to your passport and unencrypted drives because they could pilfer your drives to get bank passwords anyway.
Just because something doesn’t offer complete security, doesn’t mean it’s a bad idea.
OS - Ubuntu everywhere
Online Storage - This is part of my selfhosting stack. My server is in my house (but accessible from internet), no need for at rest encryption.
Social Media - Not much apart from some reddit and HN. Never got into other things.