Well... Yesterday, Zen implied it's pacov's smurf. But Zen was in a weird mood (made me play an all-Rook 3v3, no less -- it was fun, though, and, surprisingly, I was far from being the most unsuccessful Rook in that game
).
Personally, I don't believe it's pacov's smurf. Why? It's elementary, Shane. All pacov smurfs are easily recognizable by the over-use of 'heh'; die_minion never said 'heh' in all those games I've played with and against him. Not once! Ergo, it's not pacov. Pacov cannot control his hehs, and we all know it.