My account was deleted by the rollback lel. At least I didn't do much besides introduce myself and check to see if one of my genesects was hacked. Hope this doesn't happen again, though.
I've seen this kind of thing happen on two other websites I'm on, with one losing about a day and the other losing two months. The former, a virtual pet site, started having constant backups (each and every account, post, and pet gets backed up within a minute of creation), while the latter, an animal MMO, started backing up daily.