As a guy who tried writing my own chess engine, it's pretty trivial to modify a chess engine in such a way that looking for "chess engine like moves" won't work

As a guy who tried writing my own chess engine, it's pretty trivial to modify a chess engine in such a way that looking for "chess engine like moves" won't work. Take a high end engine, start messing with it's piece square tables. Modify or turn off the opening book and end game tablebases, and add slight changes to the evaluation function (e.g. slightly modify piece values. Even doing just two of the things listed above is enough to destroy fingerprinting techniques.