Can their undeveloped feelings, project as being mean. Like when you ask an ISTP for help or advice on something that is of little importance to them in their view, they just give you a direct answer without thinking how this might affect you even if you have told them it means a lot to you? Why are they not sympathetic and unempathic?
Why is it when the opposite is done to them, they hide under a rock and act victimised? Sorrry to generalise all ISTPs