I'm wondering whether there's any legitimate sorority connection at all. The red flag for me was when the alleged KKG alum wrote, "one night during the
rush process, I was blindfolded with two of my fellow
pledges." (emphasis mine)
Maybe it's just me, but I knew when I was rushing, I knew when rush was over, and I knew when I was considered a pledge. In my experience, the only people who ever confuse these stages are those who were not involved in the process.
ETA: Jinx, MaggieXi!