What kind of information can facebook produce if requested?

This is an older case and I heard that they do not just just produce this information when just a subpoena is given anymore.

Here is just the facebook related material, there is a tons of stuff in there.

The rest of the case material is here, and contains everything from what I can tell.

It’s amazing that they would had this kind of information over with just a subpoena, I wonder how that got to be a good idea?