Pretty dumb to tweet "go fuck yourself" before you've got your data off their servers - given you've only just seen that they clearly take things personally and act like kids.
Hey - the customer in question here. I'll admit, it was really stupid, definitely a mistake - I was really angry. My friend had just told me my site was down, and I got an email saying my account had been terminated, and then to top it off, a tweet saying "good luck finding your next hosting provider".
The "go fuck yourself" was a kneejerk reaction to a guy clearly enjoying his powertrip.
Tell your friend if it's on liquidweb shared hosting then there are four levels of backups with rotations on an external drive array. The data is definitely there and a reseller can get it restored within an hour for free - if they are motivated of course.
If they can prove ownership of the content to liquidweb maybe they can do an end-run around the reseller.