I thought the issue was that even though it wasn’t classified info, the shear volume of “mundane” info was enough to figure it out. Stuff like an average soldier saying “Yeah, I’m getting stationed at Fort blah, Jimmy is heading out to Fort Blah” or “My departure time is 1900 and arrival is 2300”. All that information can paint a pretty accurate picture.
You should be able to Google search your username if you haven’t deleted your account.