i dated one. he didnt seem cold at all. just immature, selfish, manipulative. I really detested him but it may be attributed to the fact that he acted like a high-schooler.
The estp that i dated did try this. basically just to get what he wanted whenever he wanted it. most infp's have that way about them though that will stick a foot up your *** for running over them too much. it gained me respect with him, enough to keep him at bay, coming back, but not enough respect really in the long run for me to be satisfied with his past slights toward me. We had conflict for sure. the sexual compatability never really faded but it wasn't great.probably worse than the estj and entj in my experience. i wouldnt go there to be honest. they have a switch for being human and not being human.
an estp would probably be someone who, if he had bad values/morals, would run a weak infp down the ground..literally and figuratively.
they'd make great for hire killers.someone who can do something and not look back.