We’ve received two reports tonight of users having their email notification settings on Facebook deleted. They were notified at login that there was a problem, and told to head over to the Notifications page to reset them.

At least one user is angry about it. The other (Simon from Ozmota), who sent the screenshot above, was more contemplative. He suggests someone simply forgot to back up a table before implementing an enhancement. I checked my account, and it’s fine.

Whatever happened, it’s a small embarrassment. The kind you see with young startups all the time. And Facebook, despite its massive growth, is still a young startup.