Comment by mothballed

This is exactly it. You see it on HN all the time. You will debate someone. Then deep in thread, a second person appears with a gotcha. when you point out that the gotcha doesn't fit in with the prior argument, they point out that was a separate person. They knew damn well what they're doing with their little conniving deflection fuck-fuck game. They're acting for the same surrogate argument. The Goomba is real and the people playing the game are just too cowardly to be two-faced themselves so they act two-faced through a surrogate and deflect to the surrogate when it's pointed out.