Agree wholeheartedly with this. As has been mentioned, there will be an "official" Facebook group page for your class moderated by the NPA. But be careful what you post. Blowback from many angles is real.
There is, or likely will be, a group on Instagram that will be dedicated to your specific class. In my DS's experience, it seemed to have been started by a fellow class member or other mid at the academy. But again, be very careful what you share and maybe even consider scrubbing old posts for things that may be used as ammo against you during INDOC. There are multiple KP related Instagram accounts that are used solely to bring levity to the daily KP life and add fodder to the lore of the KAPPA PI SIGMA fraternity. Expect your social media to be scoured for anything that can be used to make mids laugh and thereby potentially make your difficult plebe year even harder. STAY UNDER THE RADAR!