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.

You could use this to find an instance which blocks lemmynsfw.

I am not a good boi?

Nice!

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

thx, good to know :)

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

** 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.