I thought Metabase was broken when I was checking newset stats. ~6200 users in total – What the Hell?
Nah, it turned out some bots signed up and tried to make me happy. Thanks to the fact, you need to confirm the email before adding any links, it saved our database from being fed with some spam 🙌.
Next step, we need to add some anti-bot solutions (ReCaptcha or HoneyPot) to prevent this in the future.