Because of the Year 2038 problem.

The Internet Archive come to mind.

Cron does not like dots in the filename of your script. Does it work if it is just “backup” instead of “backup.sh”?

Have a look at the most upvoted comment.

Nice!

Pull up the string a bit and try again (?)

No you don’t need an additional account. You can follow communities from wherever** you are.

** some instances might be blocked

If you copy the whole URL into the search and wait second it should work for communities your instance did not know about.

btw: you can find communities with this.

Using https://browse.feddit.de/ to search for communities.

is there a way to collapse comment threads

Tab and hold top of the comment.