I see. Perhaps you applied to a certain type of company? That's my only guess as to why your experiences are different from mine. Company size/age/field might all matter here.
More anecdata: I've also went through several rounds of interviews in the past 3 years and I can confirm algoal's point of view. The interview process absolutely is broken at most places in SV. It also appears to be broken in the most demeaning way possible for the applicant. Harsh criticism I can handle. Gladhanding and well wishes followed by a nuclear "no response ever again by anyone who works here, even if you knew them at previous companies" is more than I can handle.
PS: I interviewed at mid-sized startup companies, all 100-300 people.
