Riddle was not a fool. No, he was a man of strict standards. Ones that if you were to hang out with him, you were expected to exceed.

Yes, Riddle was no fool. He knew you all too well: he knew when one was overusing their powers. And he was not afraid to confront the issue. While others would idly watch, he would not.

He just had to catch the act. "Ahem. Care to explain the use of your powers in this moment?"