Some things are worth an alias, or a script, some things aren't quite worth either but you still wanna run them again in the future. I think that's where history helps. Awkward niche one-liners. Also sometimes you do something for the first time, take a bit to figure it out, then 6-12 months later it's easier to check your shell history than relearn the process from scratch again. Also sometimes you may want to run something new that's very similar to an old thing you ran, like maybe you forget which rsync args you've been using lately and you wanna use the same ones but on different files. Search up your last rsync, edit paths.

I used to start my history over with each PC, but last year when I upgraded my primary machine I decided to copy over my browser history and shell history in addition to the usual dotfiles and stuff. It's honestly been really nice and convenient. It almost feels like cheating that I can see stuff older than the machine that I did.