Following a great idea from their friends at GitLab, Soup.io loses all postings since 2015 because of malfunctioning backups. They write:

We had a big database crash, and the backups we had were corrupted. The only working backup was from 2015.

Also, TIL soup.io still exists.

Meanwhile, Gitlab posted a blameless postmortem. You can read it online, and they write:

Improving Recovery Procedures […] 9. Automated testing of recoveri PostgreSQL database backups (#1102) […]

Does your database backup successfully restore? Are you sure? Are you testing this? Remember these words of wisdom:

Nobody wants backup. Everybody wants restore. – Martin Seeger